The Sun.
London, England, 1840-12-08 00:00:00

f6e tile INSTRUCTION of EN-
" 'DRIVERS on RAILROADS.
Ili DIRECTQIIST of -the POLYTECHNIC I STITU-
ION hereby gTve Notice, that the SCHOOL for this pur-
-I'6se will OPEN on MONDAY, the 21st inst., for the reception
CLASS PUPILS. The following is a Syllabus of the
Course of, Instruction ;
, On the expansive property of steam, according to the
zn!ity Of the atmosphere and.the power exerted on the piston.
This to inelude:stationary engines, whether condensing or high
Pressure, as well as the locomotive. 2. On the mechanical
structure of the steam engine. 3. On the velocity of bodies
,°4 Planes, when a certain farce is applied, particularly referring
or declines, in order to show when it is necessary
to
littxr-ase or diminish the, farce of the engine. 4. On the tan-
gent at which, at any given velocity, the engine is likely:to go
off the faits when running on the curves. 5. On the strength
°r Size of ropes or chains necessary to :draw weigbtS or.loads on ,
railroad, whether on inclined planes or not. . 6. .0n the
strenxtli of tubes requisite for boilers, and on the prisper weight
with which to load the safety valve. 7. On the power of trac-
tion
on engine or rail. 8. On the quantity of water and coke
kquired per mile. 9. On the resistiznce of the atmosphere in
i Rh winds.
The Course will consist of Lectures occupying Three Months,
tt ti,e rate of Three Per Week ; and the Hours of attendance
are from Seven until Eight in the Evening, is the Theatre of
the Establishment. Fee for the Course, Two Guineas. The
reory of Steam and of the Engine will be taught by the Pro.
frit
'or. of the Institution, assisted by an experienced DRIVER
f"rigiiially a LOCOMOTIVE . EN(aNE ...111ANUFAC-
q.'‘,91tER) in the PItAdTICAt DEMONSTRATIONS.
'ne Pupils will have the'use of large SectiOnal and Working
''°4lels,:.of Locomotive; Stationary, and:Marisie Engines, with-
out additional expense. An Examination of the Pupils Will
tike place at the end of each COUrse of Lectures, to which the
iihecters and Officers of the Railroads will be invited; and no
, repil to receive a Certificate- liorn the Institution unless he
ass,s this public examination satisfactorily. Further particu-
ars may be had, by applying to -Mr. Longbottom, Secretary,
at the Institution, 309, Regent-street.- •

PATENT LEVER :WATtHES.—Messrp.
AVERY and .CO., Watchmakers, &c., 36, Ludgate-
street, St. Paul's (opposite Messrs Everington and Co.'s),
6fis-r to their Friendsand the Public their celebrated PATENT
LEVER WATCHES, capped and jewelled in four holes,
t,wuble bottom silver cases, maintaining power, .&c., at six gun-
""as, and with 3/4 plate eight guineas, of workmanship of she
Nlwst class of excellence, equal to those charged 25 per cent.
Gentlemen's levers, in gold cases, fourteen guineas
4n,1 opviarth; Ladies', with gold dial, at twelve guineas and
, lourteeo guineas. Good new Silver Verge Watches at 525. 6d.
Warranty with every watch for twelve months.
NJI.—An immense Stock of Jewellery and Fancy Goods at
=la to 30 per cent. be low the usual London charges.

YDE'S LONDON MANIFOLD LET-
TER-WRITER.
Reduced in price to Ten Shillings.
The superiority of this MANIFOLD over all Giber copying
n'achines is too well known to require comment. Several let-
!en with a copy, each having the blackness and durability of
...ink, without its irregularity, result from One Operation. It is
"ectire and expeditious in its application, extremely portable,
fttiviates th'e necessity of carrying ink, pens, &c., and (mann-
,faettired of. the best materials) is admitted to be the most com-
Pete and economical copying apparatus yet invented. A large
kasortment of different sizes and bindings always on hand.
• alanufaetttred at their Paper and Sealing-Wax Warehouse,
J Fleet-street, where may be bad the BANK SEALING-
" AX, and lIARD WAX for Hot Climates, 6s. per lb.,
Itholesale and for exportation. May be obtained of the prin-
iPal Stationers of the United Kingdom.

THE PATENT TUBULAR STOVE.
with either 1,2, 3, or 4 fronts of fire, for warming
Churches, Chapels, or Public Buildings, Halls, Warehouses,
chops,
Count ing-homes, Libraries, Wine-cellars, &c., burring
Ke or Anthracite Coal at a very trifling cost, from 12 6'60
!!qtrs without feeding; and day and night, for any period, if
::quircti. Tl.e quantity of pure warm air, at a mild summer
41perature, which, from the extent of radiating surface, is
•fully equal to that supplied by three or four stoves of the ordi
nary construction, is diffused so regularly throughout the build-
as to obviate the necessity of burning or over-heating the
".e air, and rendering it noxious and unhealthy. The beat
be regulated at pleasure. No sparks can escape, so that
teeidents by fire are impossible.
I.To be seen in action daily, at the Patent Stpve Depot, 58,
pnZ William-street, London-bridge, where also may be had
°YCE'S PATENT PORTABLE STOVES, either with
• Without pipes, from 12s. each, upwards.
• TI-•-e demand for these useful and convenient stoves is daily
'ereasing in consequence of the variety of purposes for which
they are so peculiarly adapted. Schools, Halls, Passages, Shops,
„,, '°unting- houses, Bankers and Merchants' Strong-rooms, Clo-
;et,. ness Rooms, Carriage-houses, airing of damp rooms,
&e., drying goods, new buildings, &c., feet warmers for
Marriages, pews, gigs, &c. ; for hot and green-houses, conser-
attries, pits, ar7efemigating to destroy vermin, &c. They
ti
be moved from place to pace, suspended from the top, or
"fled in the earth, burning 12, 16, or 24 hours without the
east attention. For chemists, &c. oilmen, perfumers, wine
;::,.beet. merchants, wax or cement'kettles free from danger of
'",9g over, and keeping the cement in a proper state for use
fix or eight hours. All descriptions to be seen as above.

CAUTION TO PERSONS NEGLECT
ING THEIR TEETH AND GUMS.
Itr,,„
-.ACT FROM MONS. LE DRAYS "TREATISE OW LOSS OF
TEETH."
Among the various disorders of the Mouth, there is none
re
°re destructive than Scurvy, which on first entering the Gums
:144es ern to leed on the most tring occasions, and o-
aces the most offensive and frequently putrid breath.pr A
'eft substance . invariably accumulates around the necks
q the Teeth, penetrates into the Gums, which gradually
!restse away, and the Teeth then become loose, and
,-,rOP out whole fro re their sockets, and it is well known tbs.)
"e loss of -Teeth arises more from this cause than any other.
On this subject a distinguislted Lecturei makes the following
Nervetions the disgusting effects of this accumii-
ettion arc corwidered, it would appal' impossible that any per-
‘its -
on could be necessary to induce persons to obviate so great
t nuisance even on their own account : or if they are too de-
`Ased to procure their own comfort and cleanliness by employ-
'else:, a.eeillnl Dentist, they surely have no right to shock the
;Asses of others, who possess more delicacy and propriety of
:sing than themselves. Yet, so it. is ; and the sight and the
I'll are alike constantly outraged by the filthiness of some
r°eple; who seem to obtrude their faces the closer in proportion
the tregust which they occasion."—Bell's Lectures, p. 199.
Could such persons only sop the horrid state of their teeth
;I'l'l gums, or for a moment catch the odour of their own
alh, they would not hesitate to seek immediate relief. To
V'fessional men, shop-keepers, and tradesmen generally, who
''* much intercourse with the refined and fashionable world,
0,
lieeeemee state of the mouth must be of the greatest importance '..
eees is not an offensive breath, which in nineteen cases out
owen'ty proceeds from the bad state of the teeth and gums,
e A
,Y much calculated to prevent the blessing of matrimony?
" how often, from inadvertence or neglect, is the happiness
ee.l4'l the-merrie state most grievously interupted by the same
...eee ? ' ,
Re he e inconvenieneies attendine the Loss of Teeth are too
iis ',I known to require comment.'but to those who have
is oestrous
the comfort of ArtifiCial Teeth, Monsieur Lenot Dray
T oestrous of showing some of the diffidulties more or less en.
'4"
be-eyelt individual without them. When the Teeth are
"' it is impossible to make use of solid food ; and if the
titiutnl'h is then loaded with pieces without being masticated,
,t° Patient is exposed to the most distressing ineigestions, the
pr4eaelt loses its power of contraction, and becomes weak us
tirPnjtiete as it no longer digests ; besides, when the Teeth
e'ye:ne, a great vacuum is left in, the mouth, which occasions
are I ttisscle in the face to be distorted, and the whole features
'3ll-eletel • drawn from their original position.
l' -nsist e.l-
ort
- e .
te fie 'insist impance of the teeth, whether in regard
e-retne functions of personaln articulation,- to which they
8° essential or tobp appearance, in which they are
4;eaeh concerned, must appear a waste of words, were it not
te,,,,ltrouble to(me that -ththinkere are mane persons wh never give themselves
t-
upon the subject o ; who seem scarcely
pae that they possess teeth at all, while their gross and cut-
tow." negllgence renders the fact too apparent to their friends
, essoeiates.
it4estification is the first process of digestion, and unless it
i 413' performed, the subsequent processes can never go' on
'Per,y,
;, essential is this preparatory process, that the neglect of it
e llieient to occasion indigestion, a disordered stomach, ner-
iPtils debility, depression of spirits,the skin becomes remelt and
1.111, a a-lead colour, the eyes lose their brilliancy, the lips
f bredvermillion hue, and, in a word, it is no uncommon thing
Or th
, ewhole body to receive such a shock as to cause re-
terna,t" of the whole system, which produces an irritable
see l',er, quite foreign to the natural disposition, whereby
to become 'an annoyance to our friends, and a burthen
terieteurselves. But; I need not dwell upon the num-
oriei " concomitant evils which may thus oss, their
1-.,,'n°,fl to imperfect mastication. It is snfficient to
4;4,7, that Monsieur Le Dray's improvements will be
r `" to be many years in advance of any system now in Eu-
C'e. and that artificial teeth ale brought to such perfection, at
i, establishment, No. 60, Newman-street, Oxford-street., as
ti:e Perform this function in a manner equal in every respect to
41.' Lae oral teeth, and may be used with every comfort. They
°to arranged as to restore the face to its former youthful
%as% correcting all deformities of the mouth, and entirely doing
'sway with the old system of springs, clasps, and wires.
As an , ssential point of beauty, the teeth must ever stan -
Pre-rminent. No regularity of fea-ures, no brilliancy of emit-
pl,,tion, no sparkling eyes, or silken braids of jetty hair can
tender that lady beautiful, who when she opens her lips
(though they be of coral), discloses a set of teeth irregular or
'iiseolourt d. On the contrary, even homely features and a
sallove complexion are embellished and rendered agreeable by a
ti°osl set of teeth. A mouth large and ill-formed will pass
ninuticed, when it contains teeth beautifully white and even.
`'" the other hand the effects of decay, the accumulation of
tartar', the blackened and denuded fangs, and the taint of the
breath, which is a common concomitant of bad teeth, will
litvar
Iteguhialar tly rove disgustin and loathsome.
, peeth, white, ang d free from. all •extraneous matter,
„-reornament equally attractive in either sex, Those per-
soe_
i ''' who do not possess this natural advantage, should en-
(tearour, by extreme care and cleaminess, and a timely resort.
:ertificial eid, to remedy the imperfections, and supply the
,1116encies of nature, in order that their teeth, if not an agree-
.pitotiliesti:vcst,omnea.y be prevented, as far as possible, from becoming
es onsieur LE DRAY, Surgeon-Dentist, 60, Newman-street,
Vord-street, respectfully acquaints the Nobility, Gentry,
e,,,ergY, and the inhabitants of London and its vicinity: that he
repttues to reetore Decayed Teeth with his celebrated
,Mine-
oi id,larmoratum, so universally recommended by the Faculty
ste,ngland, France, and throughout the Continent, which
teti';'"tee he is sole inventor and possessor of. The nye;
th,-n is performed without the least pain ; it is placed into
Ite in an almost liquid state, and in a few seconds
fel ens into enamel,- preventing and curing the Tooth
.Ache,
t- ' teeeset_ing all further progress of decay, allaying in one minute
tree,".'°et excruciatirg pain, and rendering the operation. ot .
et. e`4oll unnecessary. He also fastens loose Teeth, particulaily
reV persons, whether arising from neglect, the use of Cato-
- Aisease of the gums, or any other cause.
gent,TIFICIAL or NATURAL TEETH of surpassing
, to match equal in colour and shape those left in the
e. fixed from one to a complete set, without extracting
tlat roots or ivin any pain ; and they ae so exactly formed to
eitlire, thatg g the closest observer cannotr detect 'the difference,
Rear
this advantage, that they never change colour, decay, or
Pe Wit at the following Paris charges:—
4 single Artificial Tooth
A ...... .. ...... 0 10 0
Set
5 b 0
, A complete Set
complete Set of Natural Teeth, beautifully
' taunted in artificial gums, or fine gold, the saine as
bar
lie ged Thirty Guineas l5 0
fl eritire Set of Monsieur Le Dray'ls s
beautiful Nil-
4ral- Teeth, highly finished, in the first style, the
82,r,... ,
A .- as charged Forty pounds ... . 21 0 0
'"iNed t n a principle yet unrivalled, rendering it impossible
eeumieguish the Artificial Teeth from the Natural ones;
rwerlng most satisfactorily all ehe purposes of the original
I,4eteitel in
mastication and articulation, imparting to the nounte-
titeiZ„,a ko,sstnger and improved appearance,
.protecting the
'''''.lll,t,th, and rernaittitig petiectly secure in their place:.
tIO At Rome every day from Ten till Six.
'lle- '
s wirais-street, Oxford street.
.. ....... .