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                                                                 Exhibit 10.68

                              DATED 14th JULY 2004


                           MR AND MRS D V WATERMAN (1)

                                      -TO-

                           LARK TECHNOLOGIES INC. (2)


                                      LEASE

                 OF LAND AND BUILDINGS AT LITTLE BULLOCKS FARM,
           HOPE END, TAKELEY, NEAR BISHOP'S STORTFORD, HERTS CM22 6TA


                                  Leonard Gray
                                   Solicitors
                                72-74 Duke Street
                                   Chelmsford
                                  Essex CM1 1JY
                               (Ref: JA/Waterman)

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                                      INDEX

<Table>
<Caption>
<S>                                                                           <C>
DEFINITIONS....................................................................1

INTERPRETATION.................................................................2

DEMISE.........................................................................3

TENANT'S COVENANTS ........................................................... 3

LANDLORD'S COVENANTS .........................................................13

RENT REVIEW ..................................................................15

PROVISOS .....................................................................18
</Table>


First Schedule - the demised premises

Second Schedule - ancillary rights

Third Schedule - reserved rights

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THIS LEASE is made the 14th July, 2004

BETWEEN:- ______________________________________________________________________

PARTIES

(1)       "the Landlord"   :    DOUGLAS  VICTOR  WATERMAN and JULIE ANN JOAN
                                WATERMAN both of Little  Bullocks  Farm,  Hope
                                End, Takeley, near Bishop's Stortford,
                                Hertfordshire CM22 6TA

(2)       "the Tenant"     :    LARK TECHNOLOGIES  INC. (a company  incorporated
                                in the United States and registered in the
                                United Kingdom under foreign company register
                                company no. FC018849, branch no. BR003154) whose
                                head office is 9441 West Sam, Houston Parkway
                                South, Suite 103, Houston, Texas 77099, USA and
                                the address of whose registered branch in Great
                                Britain is at Radwinter Road, Saffron Walden,
                                Essex CB11 3HY

DEFINITIONS

1.             IN this lease the following terms have the meanings set against
               them:-

1.1       "THE DEMISED PREMISES"     :    the premises described in the First
                                          Schedule;

1.2       "THE TERM"                 :    a term of years starting on the 1st
                                          June 2004 and expiring on the 31st
                                          May 2014;

1.3       "THE INITIAL RENT"         :    L64,000 (Sixty four thousand pounds)
                                          per annum;

1.4       "RENT PAYMENT DAYS"        :    the first day in each calendar month
                                          of the term;

1.5       "REVIEW DATE"              :    the 1st June 2009;

1.6       "THE PERMITTED USE"        :    subject to the provisions of subclause
                                          4.11 of this lease, any use that falls
                                          within Classes B1 and B8 of the
                                          Schedule to the Town and Country
                                          Planning (Use Classes) Order 1987.

                                        1
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INTERPRETATION

2.             IN the interpretation of this lease:-

2.1            "LANDLORD" includes the person for the time being entitled to
               the reversion immediately expectant on the termination of the
               term;

2.2            "TENANT" includes the assigns and successors in title of the
               Tenant and the person in whom for the time being the demised
               premises are vested for the term;

2.3            Whenever the demised premises are vested in more than one person
               for the term, every covenant on the part of the Tenant contained
               in this lease shall be deemed to be made jointly and severally by
               those persons;

2.4            Words importing one gender include all other genders and words
               importing the singular include the plural and vice versa;

2.5            The expression "THE TERM" includes any period of holding over or
               extension whether by statute or otherwise;

2.6            A reference to a statute shall refer to the statute as
               amended at the date of this lease and shall include any
               subsequent statutory amendment or re-enactment thereof;

2.7            "THE BANK" means Barclays Bank plc or the bank which is the
               successor to the business of that bank or, if any such bank
               ceases to trade in circumstances that no one bank succeeds to
               that business, such member of the Committee of London and
               Scottish Bankers as the Landlord may nominate;

2.8            "BASE RATE" means the published base rate from time to time of
               the bank, but if no such rate shall be published, four per cent
               above the rate paid by the bank from time to time on deposits of
               the minimum sum accepted at interest for repayment on seven days'
               notice;

2.9            "INTEREST" is at the annual rate of five per cent above the base
               rate for the time being compounded with rests on each rent
               payment day;

2.10           Any covenant to pay interest shall be a covenant to pay interest
               at the said rate both before and after any judgment or
               arbitration award;

2.11           "THIS LEASE" includes any deed or document supplemental to this
               lease;

2.12           The clause and schedule headings do not form part of this lease
               and shall not be taken into account in its construction or
               interpretation.

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DEMISE

3.             THE Landlord hereby demises unto the Tenant ALL THOSE the demised
               premises TOGETHER WITH the benefit of the rights set out in the
               Second Schedule BUT EXCEPT AND RESERVING unto the Landlord the
               rights set out in the Third Schedule TO HOLD the same unto the
               Tenant for the term SUBJECT to all rights, easements, privileges,
               restrictions, covenants and stipulations of whatever nature
               affecting the demised premises YIELDING AND PAYING therefor the
               initial rent or such other yearly rent as may be agreed or
               determined in accordance with clause 6 of this lease by equal
               monthly installments in advance on the rent payment days (the
               first and last payments being (if appropriate) of a proportionate
               sum) AND ALSO YIELDING AND PAYING as further rent on demand sums
               equal to the premiums from time to time expended by the Landlord
               in effecting and maintaining insurance of the demised premises in
               accordance with the obligations of the Landlord contained in
               subclause 5.2 of this lease.

TENANT'S COVENANTS

4.             THE Tenant COVENANTS with the Landlord as follows:-

4.1            RENT

4.1:1          To pay the rents hereby reserved on the days and in the manner
               set out in this lease without any deductions whatsoever and
               without exercising any right of set off;

4.1:2          If so required in writing by the Landlord to make such payments
               by banker's order or credit transfer to any bank account in the
               United Kingdom that the Landlord may from time to time nominate;

INTEREST ON ARREARS

4.1:3          To pay interest on all or any part of any installment of rent
               hereby reserved or other sum payable by the Tenant hereunder from
               seven days after the same shall have become due until the date of
               payment.

4.2            OUTGOINGS

               To pay all rates, taxes and outgoings in respect of the demised
               premises including any imposed or becoming payable after the date
               hereof, whether or not of a novel nature but not:

4.2:1          any tax assessed upon the aggregate or any proportion of the
               income or the value of the assets of the Landlord; nor

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4.2:2          any tax assessed or payable by reason of the act of the Landlord
               in granting this lease to the appropriate authorities
               respectively responsible for collecting the same, provided that:

               (a)  in the absence of direct assessment or supply the Tenant
                    shall on demand pay to the Landlord a fair proportion
                    determined by the Landlord acting reasonably of all rates,
                    taxes, water supply charges, electricity supply charges and
                    other outgoings attributable or supplied both to the demised
                    premises and to neighbouring property of the Landlord; and

               (b)  if the demised premises shall have been left unoccupied
                    during any period immediately preceding the termination of
                    the term as a result of which a void allowance for rating
                    purposes becomes available to the Tenant and on the
                    termination of the term such void allowance for unoccupied
                    property is restricted to a maximum period, then the Tenant
                    shall pay to the Landlord such sum as shall afford the
                    Landlord the equivalent of the full benefit of such maximum
                    period.

4.3            CONDITION

4.3:1          To keep the interior of the demised premises in a clean condition
               and in good repair and decorative order, damage by any risk
               covered by the Landlord's buildings insurance policy for the time
               being in force in respect of the demised premises excepted,
               unless and to the extent that any act or omission of the Tenant
               renders the insurance money irrecoverable and subject to the
               Tenant reimbursing the Landlord on demand any excess applicable
               to the policy) and the interior of the demised premises shall be
               deemed to include all ceilings, floors and the internal surfaces
               of all walls, but shall exclude joists immediately above ceilings
               and supporting floors;

4.3:2          To yield up the demised premises with the interior thereof, all
               additions to them and all fixtures annexed to them in such clean
               condition and good repair and decorative order and with vacant
               possession of the whole to the Landlord on the termination of the
               term howsoever determined;

4.3:3          Nothing in this subclause shall oblige the Tenant to do any work
               to put the interior of the demised premises into a better state
               and condition than it was in on the date of this lease as
               evidenced by the photographic record of condition attached
               hereto.

4.4            EFFECT WORKS ON NOTICE

4.4:1          To permit the Landlord or any person authorised by the Landlord
               to enter onto the demised premises at any reasonable time on at
               least seven days' notice (or without notice in an emergency) to
               inspect the condition thereof and on the Landlord giving notice
               of any work required by reason of a failure to perform the

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               obligations of the Tenant hereunder promptly to start and
               diligently to proceed to make them good;

4.4:2          Upon any failure to comply with a notice under this subclause to
               permit the Landlord to enter the demised premises with
               appliances, workmen and others to execute the works required to
               comply with such notice and to pay to the Landlord on demand the
               cost thereof.

4.5            ENTRY TO REPAIR ETC.

               To permit the Landlord or any person authorised by the Landord
               with appliances, workmen and others to enter the demised premises
               at any reasonable time on at least seven days' notice (or without
               notice in an emergency) to perform the obligations of the
               Landlord contained in clause 5.4 of this lease, to repair,
               maintain, cleanse or renew any adjoining or neighbouring property
               or any sewers, pipes or wires serving the same or to carry out
               construction work pursuant to the rights reserved to the Landlord
               under paragraphs 2 and 3 of the Third Schedule, the person so
               entering causing as little inconvenience to the Tenant and damage
               to the demised premises as is reasonably possible and promptly
               making good all damage to the demised premises thereby caused.

4.6            SHARED FACILITIES

               To contribute on demand a fair proportion according to use
               determined by the Landlord acting reasonably of the cost of
               repairing, maintaining, cleansing and (where necessary and
               appropriate) resurfacing all party walls, party structures,
               yards, unadopted roads, ways and footpaths, landscaped areas,
               parking areas, sewers, drains, pipes, conduits, wires and other
               things used or enjoyed by the occupier of the demised premises in
               common with the occupiers of the Landlord's neighbouring
               property.

4.7            ALTERATIONS

4.7:1          Subject to subclause 4.15:2 of this clause, not without the
               Landlord's prior written consent to make or permit any
               alterations or additions to the demised premises (such consent
               not to be unreasonably withheld, provided that as a condition of
               granting any such consent the Landlord may require the Tenant to
               reinstate the demised premises to their present condition on the
               determination of the term, howsoever determined);

4.7:2          In making any alterations or additions to the demised premises to
               carry out the work strictly in accordance with the terms of all
               necessary official consents (which shall be obtained in advance)
               in materials of good quality to light standards of workmanship
               and in all respects to the reasonable satisfaction of the
               Landlord's architect or surveyor for the time being, whose fees
               for inspecting and approving the plans and the work shall be paid
               by the Tenant on demand.

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4.8            INCREASED PREMIUMS

               To the extent that any insurance premium payable in respect of
               any adjoining or neighbouring property of the Landlord is
               increased by reason of the use to which the Tenant puts all or
               any part of the demised premises, to pay to the Landlord on
               demand the amount of such increase.

4.9            NOT AVOID INSURANCE ETC.

4.9:1          Not to do or permit to be done anything that will or may render
               void or voidable any policy of insurance covering the demised
               premises or increase the premium payable thereon;

4.9:2          To comply with all requirements and recommendations of the
               insurers and the fire authority in relation to the demised
               premises and without prejudice to the generality of the
               foregoing:

4.9.2:1        To keep the demised premises supplied with such fire fighting
               equipment as the insurers and the fire authority may require and
               to maintain such equipment in good working order;

4.9.2:2        Not to store or bring onto the demised premises any articles,
               substance or liquid of an especially combustible, inflammable or
               explosive nature;

4.9.2:3        Not to obstruct the access to any fire fighting equipment or the
               means of escape from the demised premises;

4.9:3          Immediately to inform the Landlord in writing of any conviction,
               judgment or finding of any court or tribunal relating to the
               Tenant (or any director, other officer or major shareholder of
               the Tenant) of such a nature as to be likely to affect the
               decision of any insurer or underwriter to grant or to continue
               any insurance of the demised premises.

4.10           USE

               Not to use or permit the use of the demised premises or any part
               thereof otherwise than for the permitted use.

4.11           OBJECTIONABLE/PROHIBITED USE

               Not to use or permit the use of the demised premises or any part
               thereof for any dangerous, offensive, noxious, noisome, illegal
               or immoral activity or in any manner that may be or become a
               nuisance or annoyance to the Landlord or to the owner or occupier
               of any neighbouring premises.

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4.12           INDUSTRIAL COVENANTS

4.12:1         Not to cause or permit any grit smoke or noxious or offensive
               effluvia to be emitted from any apparatus on the demised
               premises;

4.12:2         Not to permit to be discharged into the pipes, sewers or drains
               serving the demised premises any oil or grease or any
               deleterious, objectionable, dangerous, poisonous or explosive
               matter or substance and to take all reasonable steps to ensure
               that any effluent discharged into such pipes, sewers and drains
               will not be corrosive or otherwise harmful to them or cause any
               obstruction or deposit in them;

4.12:3         Not to bring or permit to remain upon the demised premises any
               safes, machinery, goods or other articles which shall or may
               strain or damage the demised premises;

4.12.4:1       Not without the prior written consent of the Landlord to suspend
               any weight from the portal frames, stanchions or roof purlins of
               the demised premises or use the same for the storage of goods or
               place any weight on them;

4.12.4:2       On any application by the Tenant for the Landlord's consent under
               the preceding subclause, the Landlord shall be entitled to
               consult and obtain the advice of an engineer or other person in
               relation to the loading proposed by the Tenant and the Tenant
               shall repay to the Landlord on demand the fee of such engineer or
               other person;

4.12:5         To keep all plant apparatus and machinery upon the demised
               premises properly operated, maintained and in good working order
               and to avoid damage to the demised premises by vibration or
               otherwise;

4.12:6         Not to bring, keep, store, stack or lay outside the confines of
               the buildings on the demised premises any materials, equipment,
               plant, bins, crates, cartons, boxes or any receptacle for waste
               or other item.

4.13           ACCESS/OPEN AREAS

4.13:1         Not to obstruct the access to the demised premises nor to cause
               congestion thereof or inconvenience to any other user thereof;

4.13:2         To keep all parts of the demised premises which are not built on
               in a clean and tidy condition at all times.

4.14           PLANNING

4.14:1         At all times to comply with the requirements of the Planning Acts
               insofar as they affect the demised premises;

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4.14:2         Not without the prior written consent of the Landlord to apply
               for permission to carry out on the demised premises any
               development requiring permission under the Planning Acts;

4.14:3         Not without the prior written consent of the Landlord to
               implement any planning permission relating to the demised
               premises;

4.14:4         To comply with any conditions attached to any temporary planning
               permission that the Tenant implements and which are intended to
               be complied with when the demised premises cease to be used in
               accordance with that planning permission, even though the period
               for which the permission was granted extends beyond the date of
               termination of this lease;

4.14:5         Forthwith upon receipt of any notice relating to the development
               of the demised premises or any neighbouring property to deliver a
               copy thereof to the Landlord and if so required by the Landlord
               to join with the Landlord at the expense of the Landlord in
               making representations concerning the same;

4.14:6         Whenever required to permit the Landlord to enter upon the
               demised premises to comply with any requirement lawfully made of
               the Landlord under the Planning Acts by any competent authority
               notwithstanding that any action reasonably necessary for
               compliance interferes with the Tenant's enjoyment of the demised
               premises;

4.14:7         For the purposes of this subclause the expression 'the Planning
               Acts' shall mean the Town and Country Planning Act 1990, the
               Planning (Listed Buildings and Conservation Areas) Act 1990 and
               the rules, regulations and orders which are either made under one
               of them or are continued by the Planning (Consequential
               Provisions) Act 1990.

4.15           STATUTORY REQUIREMENTS

4.15:1         At all times to observe and comply with the provisions of or
               imposed under any statute, licence or registration regulating, or
               permitting the use of the demised premises for the purpose for
               which they are for the time being used and the requirements of
               any competent authority in that connection and at the expense of
               the Tenant to do all that is necessary to obtain, maintain and
               renew all licences and registrations required by law for the use
               of the demised premises for that purpose;

4.15:2         To comply promptly and at the cost of the Tenant with all orders,
               notices, regulations or requirements of any competent authority
               pursuant to any statute requiring any alteration, addition,
               modification or other work on or to the demised premises and
               forthwith to notify the Landlord of the receipt by the Tenant of
               any such notice, regulation or requirement and deliver to the
               Landlord a copy thereof.

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4.16           ADVERTISEMENTS

               Not to display any notices, placards, advertisements or signs on
               the exterior of the demised premises or within the demised
               premises and visible from outside except a reasonable
               announcement of the name and business of the Tenant or any
               subtenant of the Tenant to which the Landlord has given prior
               written consent (such consent not to be unreasonably withheld or
               delayed).

4.17           DEALINGS

4.17:1         Not without the prior written consent of the Landlord to assign,
               mortgage or charge the whole of the demised premises, such
               consent not to be unreasonably withheld, provided that the
               Landlord shall in the case of an assignment be entitled for the
               purposes of section 19(1A) of the Landlord and Tenant Act 1927 to
               withhold consent in any of the circumstances set out in subclause
               4.17:3 and to impose all or any of the matters set out in
               subclause 4.17:4 as a condition of granting consent (PROVIDED
               THAT it is agreed that if the Tenant shall assign, sell, transfer
               or otherwise dispose of its business in the UK to a subsidiary
               company of the Tenant or to a subsidiary company of the Tenant's
               parent company (currently Genaissance Pharmaceuticals Inc.)
               incorporated under the Laws of England and Wales ('the UK
               Subsidiary') then the Landlord will consent to the assignment of
               the Lease to the UK Subsidiary without conditions);

4.17:2         The proviso to subclause 4.17:1 shall operate without prejudice
               to the right of the Landlord to withhold such consent on any
               other ground or grounds where such withholding of consent would
               be reasonable or to impose any further condition or conditions
               upon the grant of consent where the imposition of such condition
               or conditions would be reasonable;

4.17:3         The circumstances referred to in subclause 4.17:1 above are as
               follows:

4.17.3:1       where the proposed assignee is an associated company of the
               Tenant (if the Tenant is a corporation);

4.17.3:2       where in the reasonable opinion of the Landlord the proposed
               assignee is not of sufficient financial standing to enable it to
               comply with the Tenant's covenants in this lease;

4.17.3:3       where the proposed assignee enjoys diplomatic or state immunity
               or is not resident in a jurisdiction where reciprocal enforcement
               of judgments exists;

4.17:4         The conditions referred to in clause 4.17:1 above are as follows:

4.17.4:1       the execution and delivery to the Landlord prior to the
               assignment in question of a deed of guarantee (being an
               authorised guarantee agreement within section 16 of

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               the Landlord and Tenant (Covenants) Act 1995) in a form
               reasonably required by the Landlord;

4.17.4:2       the payment to the Landlord of all rents and other sums which
               have fallen due under this lease prior to the date of the
               assignment;

4.17.4:3       the execution and delivery to the Landlord prior to the
               assignment of a rent deposit deed for such sum as the Landlord
               may reasonably determine and in such form as the Landlord may
               reasonably require, together with the payment by way of cleared
               funds of the sum specified in the rent deposit deed;

4.17.4:4       the assignment shall not take place until any requisite consent
               of any superior landlord or mortgagee has been obtained and any
               lawfully imposed condition of such consent satisfied;

4.17.4:5       Not to sublet the whole of the demised premises without the prior
               written consent of the Landlord (such consent not to be
               unreasonably withheld or delayed);

4.17:5         That each and every permitted underlease shall be granted without
               any fine or premium at a yearly rent not less than the then open
               market rental value of the demised premises or the rent then
               being paid under this lease (whichever shall be the greater),
               such rent being payable in advance on the rent payment days and
               shall contain provisions approved by the Landlord:

4.17.5:1       for the upwards only review of the yearly rent reserved by such
               underlease on the basis and on the date on which yearly rent is
               to be reviewed in this lease;

4.17.5:2       prohibiting the subtenant from doing or allowing any act or thing
               in relation to the demised premises inconsistent with or in
               breach of the provisions of this lease;

4.17.5:3       for re-entry by the sublandlord on the breach of any covenant by
               the subtenant;

4.17.5:4       imposing an absolute prohibition against all dispositions of or
               other dealings whatsoever with the demised premises other than an
               assignment, mortgage or charge of the whole;

4.17.5:5       prohibiting any assignment, mortgage or charge of the whole
               without the prior written consent of the Landlord;

4.17.5:6       prohibiting the subtenant from permitting another to occupy the
               whole or any part of the demised premises;

4.17.5:7       effectively excluding the provisions of sections 24 to 28
               inclusive of the Landlord and Tenant Act 1954 in relation to the
               tenancy thereby granted;

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4.17.5:8       imposing in relation to any permitted assignment, mortgage or
               charge the same obligations for registration with the Landlord as
               those contained in this lease in relation to dispositions by the
               Tenant;

4.17:6         Prior to any permitted underletting to procure that the subtenant
               enters into direct covenants with the Landlord to the like effect
               as those contained in subclause 4.17:5 above;

4.17:7         To enforce the performance and observance by every subtenant of
               the provisions of every permitted underlease and not at any time
               either expressly or by implication to waive any breach of the
               covenants or conditions on the part of the subtenant nor (without
               the prior written consent of the Landlord) to vary the terms or
               accept a surrender of any permitted underlease;

4.17:8         In relation to any permitted underlease:

4.17.8:1       to ensure that the rent is reviewed in accordance with the terms
               of the underlease;

4.17.8:2       not to agree the reviewed rent with the subtenant without the
               written approval of the Landlord;

4.17.8:3       where the underlease provides such an option, not to agree that
               the third party determining the rent in default of agreement
               shall act as an arbitrator or as an expert without the written
               approval of the Landlord;

4.17.8:4       not to agree upon the appointment of a person to act as the third
               party determining the rent in default of agreement without the
               written approval of the Landlord;

4.17.8:5       to incorporate as part of its submissions or representations to
               that third party such submissions or representations as the
               Landlord shall reasonably require;

4.17.8:6       to give notice to the Landlord of the details of the
               determination of the rent review within 28 days;

4.17:9         Not to hold the demised premises on trust for another nor (save
               pursuant to a transaction permitted by and effected in accordance
               with the provisions of this lease) to part with possession of the
               whole of any part of the demised premises, or permit another to
               occupy the whole or any part of the demised premises (save as
               provided below) nor to assign, sublet, mortgage or charge part
               only of the demised premises.

4.17:10        The Tenant shall be permitted to share the occupation or use of
               the demised premises with any company within the same group as
               defined by section 42 of the Landlord and Tenant Act 1954
               provided such company obtains no separate legal estate or
               interest in the demised premises

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4.18           GIVE NOTICE OF DEALINGS

               Within one month after every assignment, subletting, mortgage or
               charge of the demised premises and every devolution of the title
               thereto to give notice thereof with full particulars to the
               Landlord or to the Landlord's solicitors and to pay a reasonable
               registration fee of not less than L 30 plus VAT on each such
               occasion and at the same time as giving such notice to provide
               for the Landlord's retention a certified copy of the assignment,
               underlease, mortgage, charge or other instrument affecting such
               dealing or devolution.

4.19           PERMIT INSPECTION

4.19:1         To permit any prospective dealer in the Landlord's interest in
               the demised premises or during the last year of the term any
               prospective tenant to inspect the demised premises at any
               reasonable time on giving at least 24 hours' prior notice in
               writing and presenting a written authority from the Landlord or
               the Landlord's agents;

4.19:2         During the last year of the term to permit the Landlord to erect
               and display on the exterior of the demised premises a board
               announcing that they are to let;

4.19:3         At any time during the term to permit the Landlord to erect and
               display on the exterior of the demised premises a board
               announcing that they are for sale.

4.20           COSTS

               To pay to the Landlord on an indemnity basis all costs, fees,
               charges, disbursements and expenses (including without prejudice
               to the generality of the foregoing those payable to counsel
               solicitors surveyors and bailiffs) reasonably and properly
               incurred by the Landlord of and incidental to:-

4.20:1         the preparation and service of a notice under section 146 of the
               Law of Property Act 1925 notwithstanding that forfeiture is
               avoided otherwise than by order of the court;

4.20:2         the recovery or attempted recovery of arrears of rent or other
               sums due from the Tenant under this lease;

4.20:3         every application made by the Tenant for a consent or licence
               required by the provisions of this lease whether such consent or
               licence is granted or refused or proferred subject to any
               qualification or condition or whether the application is
               withdrawn.

4.21           REGULATIONS

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               To comply with all reasonable regulations made by the Landlord
               from time to time for the management and security of the estate
               of which the demised premises form part.

4.22           INDEMNITIES

               To be responsible for and to keep the Landlord fully indemnified
               against all damage, damages, losses, costs, expenses, actions,
               demands, proceedings, claims and liabilities made against,
               suffered or incurred by the Landlord arising directly or
               indirectly out of:

4.22:1         any act, omission or negligence of the Tenant or any persons at
               the demised premises expressly or impliedly with the Tenants
               authority; or

4.22:2         any breach or non-observance by the Tenant of the covenants,
               conditions or other provisions of this lease or any of the
               matters to which this demise is subject.

LANDLORD'S COVENANTS

5.             THE Landlord COVENANTS With the Tenant as follows:-

5.1            QUIET ENJOYMENT

               That so long as the Tenant is not in breach of any of the
               Tenant's obligations hereunder, the Tenant shall be entitled
               peaceably and quietly to hold and enjoy the demised premises
               without any lawful interruption by the Landlord or any person
               claiming under or in trust for the Landlord.

5.2            INSURE

5.2:1          At all times to keep the demised premises and all additions
               thereto of which the Tenant has notified the Landlord insured to
               the full cost of reinstatement under a policy complying with the
               terms of this clause;

5.2:2          To produce to the Tenant on demand (but not more often than once
               in every year unless any building on the demised premises is
               destroyed or damaged in circumstances that might give rise to an
               insurance claim) the insurance policy effected pursuant to this
               clause and confirmation of payment of the last premium paid
               thereon, or (at the option of the Landlord) evidence from the
               insurers of the full terms of the policy and that it is still in
               force and to produce to the Tenant as soon as received any
               endorsement varying the terms of the insurance policy or a copy
               thereof or sufficient evidence of the contents thereof;

5.2:3          An insurance policy complies with the terms of this clause if:-

5.2.3:1        it provides cover against loss or damage by any of the following
               risks ("insured risks") to the extent that such cover is for the
               time being reasonably available at

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               normal rates for buildings of the type and location of the
               demised premises for the permitted use and subject to reasonable
               excesses and exclusions:- fire, lightning, explosion, earthquake,
               landslip, subsidence, riot, civil commotion, aircraft, aerial
               devices, storm, flood, impact by vehicles, terrorism and damage
               by malicious persons and vandals.

               Together with such other risks against which the Landlord shall
               from time to time deem it prudent to insure;

5.2.3:2        it insures an appropriate percentage of the rebuilding cost for
               professional fees incurred in rebuilding or reinstating any
               building destroyed or damaged by an insured risk and two years'
               loss of rent;

5.2.3:3        it is effected in some insurance office of repute or at Lloyds.

5.3            REINSTATE

               Subject to subclause 7.3 hereof and to all requisite planning
               permissions and other consents being first obtained, promptly to
               apply the proceeds of any insurance policy effected by the
               Landlord covering the demised premises and all additions thereto
               in the rebuilding or reinstatement thereof.

5.4            REPAIR

               Subject to subclause 7.3 hereof to keep the structure and
               exterior of the demised premises and the services and service
               conduits serving the demised premises in good repair (fair wear
               and tear and any damage caused to the demised premises by the
               Tenant or by any person at the demised premises expressly or
               impliedly with the authority of the Tenant which is not covered
               by any insurance policy effected by the Landlord in relation to
               the demised premises excepted). Provided that the Landlord shall
               have no obligation to do any work to put the structure and
               exterior of the demised premises and the services and service
               conduits serving the demised premises into a better state and
               condition than they were in at the commencement of the term.

5.5            SHARED FACILITIES

               To repair, maintain and cleanse all shared facilities referred to
               in clause 4.6 above and, without prejudice to the generality of
               the foregoing, to ensure that the Tenant's right of way referred
               to in paragraph 1 of the Second Schedule over the roadway,
               forecourt area, yard and/or footpaths shown coloured brown on the
               attached plan ("the plan") shall not be obstructed or otherwise
               impaired (except when repairing or resurfacing them and then for
               no longer than is reasonably necessary) at any time during the
               term.

5.6            ASBESTOS

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               To assume the responsibilities of the dutyholder pursuant to the
               Control of Asbestos at Work Regulations 2002 and, without
               prejudice to the generality of the foregoing, to procure that an
               asbestos survey is carried out as soon as it is practicable to do
               so and at the Landlord's own cost to comply with any measures
               required by that survey.

5.7            To indemnify the Tenant against any actions, proceedings, claims,
               damages, costs and expenses arising from any breach or
               non-observance of clause 5.6 above.

RENT REVIEW

6.1            IN this clause "review period" means the period starting with the
               review date up to the end of the term.

6.2            The yearly rent payable under this lease during the review period
               shall be a rent equal to the initial rent or such revised rent as
               may be ascertained in the manner provided in this clause,
               whichever is the greater.

6.3            Such revised rent for the review period may be agreed at any time
               between the Landlord and the Tenant or (in the absence of
               agreement) determined not earlier than the review date at the
               option of the Landlord either by an arbitrator or by an
               independent valuer (acting as an expert and not as an
               arbitrator), such arbitrator or valuer to be nominated in the
               absence of agreement by or on behalf of the President for the
               time being of the Royal Institution of Chartered Surveyors on the
               application of the Landlord (in exercise of the said option) made
               not earlier than six months before the review date and so that in
               the case of such arbitration or valuation the revised rent to be
               awarded or determined by the arbitrator or valuer shall be such
               as he shall decide is the yearly rent at which the demised
               premises might reasonably be expected to be let at the review
               date:

6.3:1          On the following assumptions at that date:

6.3.1:1        That the demised premises:

6.3.1.1:1      are available to let on the open market without a fine or premium
               with vacant possession by a willing landlord to a willing tenant
               for a term of 10 years;

6.3.1.1:2      are to be let as a whole subject to the terms of this lease
               (other than the amount of the yearly rent hereby reserved, but
               including the provisions for review of that rent after five
               years);

6.3.1.1:3      are fit and available for immediate occupation;

6.3.1.1:4      may be used for any of the purposes permitted by this lease as
               varied or extended by any licence granted pursuant thereto;

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6.3.1:2        That the covenants herein contained on the part of the Tenant
               have been fully performed and observed;

6.3.1:3        That no work has been carried out to the demised premises by the
               Tenant or any subtenants of the Tenant which has diminished their
               rental value and that in case the demised premises have been
               destroyed or damaged, they have been fully restored;

6.3.1:4        That no reduction is to be made to take account of any rental
               concession which on a new letting with vacant possession might be
               granted to the incoming tenant for a period within which his
               fitting out works would take place;

6.3:2          But disregarding:

6.3.2:1        Any effect on rent of the fact that the Tenant, any subtenants of
               the Tenant or their respective predecessors in title have been in
               occupation of the demised premises;

6.3.2:2        Any goodwill attached to the demised premises by reason of the
               carrying on thereat of the business of the Tenant, any subtenants
               of the Tenant or the businesses of their respective predecessors
               in title;

6.3.2:3        Any increase in rental value of the demised premises attributable
               to the existence at the review date of any improvement to the
               demised premises or any part thereof carried out prior to the
               review date with consent where required, otherwise than in
               pursuance of an obligation to the Landlord or the Landlord's
               predecessors in title, except obligations requiring compliance
               with statutes or directions of local authorities or other bodies
               exercising powers under statute or Royal Charter, by the Tenant,
               any subtenants of the Tenant or their respective predecessors in
               title during the term.

6.4            It is hereby further provided in relation to the ascertainment
               and payment of revised yearly rent as follows:

6.4:1          In the case of arbitration the arbitration shall be conducted in
               accordance with subclause 7.6 hereof, with the further provision
               that if the arbitrator nominated pursuant to subclause 6.3 of
               this clause shall die or decline to act, the President for the
               time being of the Royal Institution of Chartered Surveyors or the
               person acting on his behalf may on the application of either the
               Landlord or the Tenant by writing discharge the arbitrator and
               appoint another in his place;

6.4:2          In the case of determination by a valuer:

6.4.2:1        the fees and expenses of the valuer, including the cost of his
               nomination, shall be in the award of the valuer;

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6.4.2:2        the valuer shall afford the Landlord and the Tenant an
               opportunity to make representations to him;

6.4.2:3        if the valuer nominated pursuant to subclause 6.3 of this clause
               shall die, delay or become unwilling, unfit or incapable of
               acting, or if for any reason the President for the time being of
               the Royal Institution of Chartered Surveyors or the person acting
               on his behalf shall in his absolute discretion think fit, he may
               on the application of either the Landlord or the Tenant by
               writing discharge the valuer and appoint another in his place;

6.4.2:4        the valuer shall notify both parties of his determination in
               writing.

6.5            When the amount of any rent to be ascertained as hereinbefore
               provided shall have been so ascertained, memoranda thereof shall
               thereupon be signed by or on behalf of the Landlord and the
               Tenant and annexed to this lease and the counterpart thereof at
               the cost of the Tenant.

6.6:1          If the revised yearly rent payable on and from the review date
               has not been ascertained by that date, yearly rent shall continue
               to be payable at the rate previously payable, but forthwith upon
               the revised yearly rent being ascertained the Tenant shall pay to
               the Landlord any shortfall between the yearly rent and the
               revised yearly rent payable up to and on the preceding rent
               payment day, together with interest on such shortfall from the
               review date until the date of payment;

6.6:2          For the purposes of this subclause the revised yearly rent shall
               be deemed to have been ascertained on the date when the same has
               been agreed between the Landlord and the Tenant or, as the case
               may be, the date of the award of the arbitrator or of the
               determination by the valuer and "interest" shall be at the base
               rate only.

6.7            If either the Landlord or the Tenant shall fail to pay any costs
               awarded against it in the case of an arbitration or its share of
               the fees and expenses of the valuer under the preceding
               provisions within fourteen days of the same being demanded by the
               arbitrator or the valuer (as the case may be), the other shall be
               entitled to pay the same and the amount so paid shall be repaid
               by the party chargeable on demand.

6.8            If the revised yearly rent in respect of the review period has
               not been agreed between the Landlord and the Tenant before the
               review date and where no agreement has been reached as to the
               appointment of an arbitrator or valuer, nor has the Landlord made
               any application to the President for the time being of the Royal
               Institution of Chartered Surveyors as previously provided, the
               Tenant may serve on the Landlord notice in writing referring to
               this provision and requiring the Landlord to exercise the option
               contained in subclause 6.3 of this clause and if the Landlord
               fails so to do within three months after service of such notice,
               the Tenant may exercise that option on behalf of the Landlord.

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PROVISOS

7.             PROVIDED ALWAYS AND IT IS AGREED AND DECLARED as follows:-

7.1            RE-ENTRY

               That if at any time any rent hereby reserved or any part thereof
               is fourteen days in arrear (whether formally demanded or not), or
               if the Tenant has failed to observe or perform any of the
               covenants on the Tenant's part contained herein, or if the Tenant
               or any guarantor for the time being of the Tenant being an
               individual is adjudicated bankrupt or an interim receiver of his
               property is appointed, or being a company goes into liquidation
               otherwise than for the purposes of amalgamation or reconstruction
               without insolvency, or an administration order is made in respect
               of it, or an administrative receiver of it is appointed, then and
               in any such case the Landlord may re-enter upon the demised
               premises or any part thereof in the name of the whole and
               thereupon the term shall absolutely determine, but without
               prejudice to any claim by the Landlord against the Tenant, or any
               guarantor for the time being of the Tenant for any antecedent
               breach of any of the covenants herein contained.

7.2            SUSPENSION OF RENT

7.2:1          This subclause applies while the demised premises or any part
               thereof are unsuitable for any authorised use to which the Tenant
               normally puts them by reason of damage to the demised premises
               caused by any risk covered by the Landlord's buildings insurance
               policy for the time being in force in respect of the demised
               premises and so long as that policy shall not have been vitiated
               or payment of the policy monies withheld or refused in whole or
               in part in consequence of any act or default of the Tenant or its
               employees, agents, licensees or invitees;

7.2:2          While this subclause applies, but for a maximum period of two
               years, the yearly rent hereby reserved or an appropriate
               proportion thereof according to the nature and extent of the
               damage sustained shall cease to be payable and any rent paid in
               advance for a period to which this subclause applies or an
               appropriate proportion thereof shall be repaid. And any dispute
               as to the application of this subclause shall be determined by
               arbitration.

7.3            INSURANCE PROCEEDS

               In any case in which, as a result of damage or destruction
               covered by an insured risk, the demised premises or any material
               part of them cannot be used for any authorised use to which the
               Tenant normally puts them and that damage or destruction has not
               been fully made good within two years from the date on which it
               occurred, the insurance moneys and all interest earned thereon
               shall belong to the Landlord absolutely and the term shall cease
               and determine, but without

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               prejudice to any claim by either party against the other for any
               antecedent breach of any of the covenants herein contained.

7.4            VAT

               All sums payable hereunder by the Tenant shall be deemed to be
               exclusive of value added tax and the amount of any such tax
               payable thereon (whether by the Tenant or by the Landlord) shall
               be paid by the Tenant to the Landlord.

7.5            RECOVERY OF SUMS PAYABLE BY THE TENANT

               All sums payable hereunder by the Tenant other than the rents
               hereby reserved shall be recoverable in the same manner as rent
               in arrear.

7.6            ARBITRATION

               Any dispute or question to be referred to arbitration hereunder
               shall be referred in accordance with the Arbitration Act 1996 to
               a single arbitrator nominated in default of agreement between the
               Landlord and the Tenant by the then President of the Royal
               Institution of Chartered Surveyors at the request of either of
               them.

7.7            EXCLUSION OF USE/FITNESS FOR PURPOSE WARRANTIES

               Nothing in this lease or in any consent granted by the Landlord
               hereunder shall imply or warrant that the demised premises
               (including any alterations or additions thereto):

7.7:1          may lawfully be used under the Planning Acts (as previously
               defined) for the permitted use (or any other purpose which may
               subsequently be authorised by the Landlord); or

7.7:2          comply with all statutory and other requirements of any competent
               authority in relation to building, health and safety, fire
               precautions or otherwise.

7.8            REPRESENTATIONS/ENTIRE UNDERSTANDING

               The Tenant acknowledges that this lease has not been entered into
               in reliance on any statement or representation made by or on
               behalf of the Landlord except any statement or representation
               expressly set out in this lease and that this lease embodies the
               entire understanding of the parties in relation to the demised
               premises and to all the matters dealt with by its provisions.

7.9            COMPENSATION ON VACATING

               Any statutory right of the Tenant to claim compensation from the
               Landlord on vacating the demised premises shall be excluded to
               the extent that the law allows.

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7.10           TENANT'S PROPERTY

               If on the expiration of the term, howsoever determined, any
               property of the Tenant remains in or on the demised premises:

7.10:1         The Landlord may as the agent of the Tenant sell such property
               and the Tenant will indemnify the Landlord against any liability
               incurred by the Landlord to any third party whose property shall
               have been sold by the Landlord in the mistaken belief held in
               good faith (which shall be presumed unless the contrary be
               proved) that such property belonged to the Tenant;

7.10:2         If the Landlord, having made reasonable efforts, is unable to
               locate the Tenant, the Landlord shall be entitled to retain such
               proceeds of sale absolutely unless the Tenant shall claim them
               within three months of the date of determination of the term;

7.10:3         The Tenant shall indemnify the Landlord against any damage
               occasioned to the demised premises and any actions, claims,
               proceedings, costs, expenses and demands made against the
               Landlord caused by or related to the presence of such property in
               or on the demised premises.

7.11           NOTICES

               Section 196 of the Law of Property Act -:1925: shall .apply to
               any notice required or authorised by this lease.

7.12           SECURITY OF TENURE EXCLUDED

               The provisions of sections 24 to 28 of the Landlord and Tenant
               Act 1954 are excluded in relation to the tenancy hereby granted
               by virtue of an Order of the Harlow County Court dated the 20th
               May 2004.

7.13           THE CONTRACTS (RIGHTS OF THIRD PARTIES) ACT 1999

               No person shall be entitled to enforce any of the provisions of
               this lease who would not have been so entitled but for the
               enactment of The Contracts (Rights of Third Parties) Act 1999.

7.14           TENANT'S OPTION TO DETERMINE

               If the Tenant wishes to terminate this lease on the review date
               and shall give to the Landlord not less than six months' notice
               in writing of such wish and shall up to the time such notice
               expires reasonably perform and observe the covenants and
               conditions contained in this lease, then when such notice expires
               the term shall immediately cease and determine, but without
               prejudice to any claim by the

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               Landlord against the Tenant or any guarantor for the time being
               of the Tenant for any antecedent breach of any of the covenants
               contained in this lease.

IN WITNESS of which this lease has been executed as a deed the day and year
first above written.

                               THE FIRST SCHEDULE
                             (THE DEMISED PREMISES)

ALL THOSE parcels of land situated at Little Bullocks Farm, Hope End, Takeley,
near Bishop's Stortford, Hertfordshire CM22 6TA shown for the purpose of
identification only edged red on the plan Together with the buildings erected
thereon.

                               THE FIRST SCHEDULE
                               (ANCILLARY RIGHTS)

1.   The right for the Tenant and all persons authorized by the Tenant, in
     common with the Landlord and all other persons having a like right, to pass
     and repass with or without vehicles to and from the demised premises at all
     reasonable times and for all reasonable purposes connected with the use and
     enjoyment of the demised premises for the permitted use (but not otherwise)
     over and along the private roadway, forecourt area, yard and/or footpaths
     (if any) shown coloured brown on the plan.

2.   The right in common as aforesaid to the free passage and running (subject
     to temporary interruption for repair, alteration or replacement) of water,
     sewage, gas, electricity and telephone services or supplies to and from the
     demised premises (insofar as such services or supplies are connected
     thereto at the date of this lease) in and through the pipes, sewers, mains,
     ducts, conduits, gutters, wires, cables, channels and other conducting
     media ("conducting media") in or under neighbouring property (if any) that
     now serve the demised premises.

3.   The right for the Tenant and all persons authorised by the Tenant, in
     common as aforesaid, to park private motor vehicles in a roadworthy
     condition in the areas so designated and shown hatched green on the plan.

4.   The right of support and shelter (where previously enjoyed by the demised
     premises).

                               THE FIRST SCHEDULE
                                (RESERVED RIGHTS)

1.   The right to the free and uninterrupted passage and running of water,
     sewage, gas, electricity and telephone services or supplies from and to
     neighbouring property in and through all conducting media which are now or
     may during the term be in, on, under or over the demised premises.

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2.   The right to construct and maintain in, on, under or over the demised
     premises at any time during the term any conducting media for the provision
     of services or supplies to neighbouring property.

3.   Full right and liberty at any time after the date of this lease to alter,
     raise the height of or rebuild any neighbouring buildings or to erect any
     new building of any height on neighbouring property, provided that the same
     shall not materially obstruct, affect or interfere with the amenity of or
     access to the demised premises or the passage of light and air thereto.

4.   All such other rights in the nature of easements or quasi-easements as have
     hitherto been exercised or enjoyed over the demised premises by
     neighbouring property and the occupier thereof or need to be so enjoyed for
     the reasonable use thereof.

SIGNED as a deed on behalf of LARK
TECHNOLOGIES INC., a company incorporated
in the United States by


being [a] person[s] who, in accordance
with the laws of that territory, is/are
acting under the authority of the
company:

Authorised Signatory[ories]

SIGNED as a deed by DOUGLAS VICTOR /s/ Douglas Victor Waterman
WATERMAN in the presence of:

Witness signature: /s/ P Chambers

Witness name: P Chambers

Witness address: 12 Claypits Villas Thaxted

Witness occupation: Warehouse Supervisor

SIGNED as a deed by JULIE ANN JOAN /s/ Julie Waterman
WATERMAN in the presence of:

Witness signature: /s/ P Chambers

Witness name: P Chambers

Witness address: 12 Claypits Villas Thaxted

Witness occupation: Warehouse Supervisor

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