Star.
London, England, 1817-08-06 00:00:00

1 T day
hi was ptrilishcd, i
In 2 r ik.. awl. price .2os. hoards,
ALOTANICAt. DESCR4PTION of Irtl.
'rum PLANTS, in /I.e MidianJ Counties particularly
of those in the heichbourhcod of Alcester; with occasional
Notes and Observations; to which is prefixed, a short Introduc-
• tion to the Study of Botany, and to the Knowledge of the ?du-
i cipal Natural Order..
By T.IttORTON. Surgeon, Al/ester.
rmbellisked with Ety,in eolourt d Fngravings, by lames
SoWerhy, F.1..5.
rented fir f.ongroan, Hurst, area, Orme, and Brown, Lon-
tion; are S. Wn.i. Scratfurd.uponAvon.

This 417 mss published, in 3 volt. Iglus. prior AI. Ti.
USEFUL KNOWLEDGE; or, a FAtniliar and
Explanatory .Atcount of the various Produc,lons of Nature,
Mnu.ral, Vegetable, and .1o:tnal, which are chid'', employed for
the vie et Alan. Ilictstrosed with numerous Figure, and illliad-
cd ass Work both of lithtru..tion am! Reference.
By the Rev. WILLIAM BINGLEY, A.M. •
Author of " Ani:nal Biography," bac.
I.nclont Printed for Baldwin, Cradock, and Joy, Paternoster-
!.ne ; sod Dorton, Harvey, and Co. Gracechurcb-street.

:us: published, price) is. extra boards,
AGIS OF ENGLAND) or, The
TRIUNIMIS of the LATE WAR, as they appear in the
'I HANKS PARLIAMENT, progrcj,eively voted to the
NAVY and ARMY ; and the Communications' either oral or
set keen, on the eti%kct, chronologically arrangeds with Notiees
Biographical and Niiiitoy.
By MAURICE EVANS, Navy and Army Attest.
am sure I speak the language of the Hour, when I soy
that it is impossible to find any where the glory of our arms so
well described, as in those brilliant displays of eloquence.*
Lord Castlereagles Speech, Marla. 1816.
04* A few Copies are taken enlarge Imperial Pater, and Holm
FL seed, price eel. Se.
Yrhi eel by A,J.Valpy ; sad sold by Messrs. tonnont and CO.;
3aldwin and Co.; Law and Whittaker • Black, Parbory, and
Allon ; Egerton ; Westlq Parrish; and an otbeenook-
seders.

Ef.:1.1004 GEOGRAPHY—WI l'H THE NEW CONTINEN•
TAL ARRANGEM EN I'S.
This day was published. price Si bound in red, a new Edition,
G".s SCHOOL GEOGRAPHY; on a mew.
easy, mid highly Improved Pan; comprising not only a
stomplete general Description, but much l'oprigraphical informa-
tion, capressly adap• ed to every Class of I .earners. both in Ladies*
and Centlemen' 4 Schools. Royal terns. with seven correct Maps.
L 7 JOSEPH GUN , late Professor of Gss.gt apby, &c.
Royal Military College Great Marlow. i
Losylon : Primed for Baldwin, eradock, and Jo.. , Paternoster
Taw; and law aid Whittaker. Ave- Martel:um.
Wier, may be had, by the same Author, a Sew Edition, just pub
',shed, with very considerable Improvemewa, price as. hound,
The Pocket Cyclopedia; or, Miscellany of useful Knowledge.
*om the later and best atehotities. designed as a Class.book for
senior Scholars, and for young Persons In general ; containing
mulch useful information on various s'.,:jects necessary to be
known by el Parsons, and yet not to be found in hooks of general
use in Schools. The 7th Edition, with many important new
Articles, and a copious List of Authorities, to which the Student
4. is referred for more err ended Information.
Also a• the same place may be had, new Editions r..f the rest
of Mr. 0 .01 remtittary Works

CATON'S WORKS.
This day was published, a New Edition, price Ss. Iluttroted
with Cates,
L At PRACTICAL TREATIE on the PRE-
VENTION and CURE of the VENEREAL DISEASE
in both Sexes, and its cespequences; in which a mild and success-
ful mode of treatment is pointed out, including Observations on
Strictures, Cutaneous Eruptions, imaginary Venereal Diseases, Secs
Its snded as a Guide against the dangerous effects of this baneful
-I'y T. M. CA EON, Surgeon, No. 10, Stanhape-street,
Newcastle-street, Strand; and late of the United Hospitalsof St.
Thames's and Oily's.
e. A Treatise oa indigestion, being an inquiry into the Moues
arising and connected with the Functions of the Stonfaels, with
marks on the Liver, and its inEuer.ce on the Gastric System.
Tn which are prefixed, some general Observations on Screphulous
anti Cutaneous Dist:tees, price sts.
r. A Popular 'Freatise on the Prevention and Cure of the dif-
fe-tnt Stages of the Asthma anti Winter Cough, with new and
s::,:cm4ul Inctructions for the Prevention and Treatment of Rath-
n- to Fits. Fourth Ldttion, price ss.
4. Practical 01,-r. cations on the Deb Pities, natural and ac-
anired, of the Generative ()rims of both Sexes, including the
'ilsory of Generation, etc. Price as. Od.
5, A Practical Treatise on Female Diseases, including Obser-
-ea ions on Parturition, Lactation, and the Disorders itirt...d.cne to
.hart important cases. Price 316 M.
- cis. Cr

MESSRS. GOSS sad Co. Members of the Royal
College of Surgeons% in London, have seJulmisly devoted
their attention for these last 17 years to the study of those divot.
den-which so frequently embitter, and tab often prevent, that in-
estisnable blessing, matrimonial felicity. *fhe numerous apps
cation* they have hitherto received from persons of the first
tincden, and the unife•ln success attending their superior mode
of treatment in such complaints, induces then% thus publicly to
offer their assistance. In all cases of liebility or Deficiency, whe-
ther resulting from the too frequency of participating in the gaie-
ties of fashionable life, the unbounded indulgence of
or a secret solitary habit, which weakinis the energy of the mind,
and destroys the flower of youth, by producing sterility in the ow.
sex, and impotence in the other, they offer a bah and permanent
cure. I'o those who, from such complaints,ue prevented enteritis
into the married state. and ashamed to seek relief brood over
their Infirmeirs in silence, it must be consoling to know, how.
ever difficult or ineffectual the cure may be deemed by other
ifraceittomes, that by a renovating and iiifaiiible method they may
be restored to a sound and vigorous constitution. A certain
disorder, frequently contracted in a moment to indiscretion, and
every species of Venereal infection, by a mild and never.failieg
mode of ereatinent, is speedily and radically removed, without
restraint in diet or exercise, as also Strletures of the Urethra and
Glees, which they are enabled is cure in a short period, without
recourse to the painfeldanserous effects of the Caustic; references
of which can be given to several Noblemen and Gentlemi n of
high respectability, who have been cured in a very slime period,
after having laboured under strictures tor many yearn.
To married Females, whose expectations of those tender
pledges of connubial happiness have been defeated, it may also be
a pleasing reflection to know, that by a proper perseverance In
their remedies, the general health is renovated, and the impedi-
ments removed. blears. Coss and Co. sucluevely professing th
cure of these partkular complaints, In orderthat they may not he
marked by a mistaken few,with the obloquy so justly attached to
the ignorant empiric, think it but justice to themselves to state,
that they have been properly educated and initiated into every
branch of the profession (certificates of which, item various bolo
pitals, and testimonials Irons the highest professional authorities,
they have to convince any inquirer). That a residence in the
warmer hemisphere of our eastern world, as well as is other parts,
emboldens them to assert, that their researches having been con-
Again diseases already enumerated, they hold smut a certainty of
renovation to such as tray labour under the debilitating
efface of e life passed under the torrid sone. And farther,
that having had opportuuities, in their profes.iunal capa-
city, of (orating an intimate acquaintance with the con-
citutiunal habits of seafaring persons, they offer to them
she best assurances of iuusiediate relief; that the success resulting
from their endeavours first induced them to quit the practice of
the general Practitioner, and they presume that their pretensions
constitute a fair ground for the unprecedented confidence with
which they have, by the Public, been so liberally honoured.
To be consulted at their home daily (personaliy, or by letter,)
by Patienu of either sex, with enemy, lelleacy, and attention
Patients in the country are requested to state the particulars
of their case, age, and manner of Using, emegetins.a rengeunsee
for advice act medicines; and the monde, er4l be Peen et
forwarded to any part of the kingdom.
I fieisS and Co. bur •.13, liouvezie•etreeti Fleet arrest.

What would be the construction, 3n .1 wl:;.it the pre-
cautions you should recommend, in order tl iasure
that safety ?—That it should be able to withstand
the proof of two or three times the pressure to which
you are likely to put it to, or rather the pressure to
which you should be limited ; if, for iii.tagee, you
mean to work it at 50 pounds pre sure, and it ...rand
the proof of 159 pounds, the prer.umpt:ln is, tii:.t it
is secure; but in the course of two or thi:e yeas all
boilers wear out.

What are the precautions that you woul.i recom-
mend to prevent a boiler being used at a greater
power than what it was adapted for ? By having an
additional safety valve, to which the person v.ho
works the engine should not have access.
Is there any other precaution that pat wouli re-
commend ?.-1 think that if it were made of malls.
able metal, such as iron and copper, it would be an
additional security.
What is the ground of your preference to malleable
or wrought metal ?—lt does not burst by an explo.
lion, as brittle metal does, but tears; it would pro.
bably rend at the joints.
You do not mean then to say, that it trout! be
impossible that a malleable boiler would burst, hat
that it is improbable that it would ?—lt would burst,
but it would not fly in pieces ; the rent would create
a natural safety valve.
Are you acquainted with the fact, that high pre;.
sure steam and water heated so as to raise that steam,
do not scalsi in the same manner with water ;sod
steam at the heat of 2L!•2 ?—I am not acquainted with
the fact; but I hare no difficulty in believisvz, Oat the
steam will not scald, although 1 should think that t.e
water will.

Do you think that if the safety-valves be prop-t!y
adjusted to the sttength of the boiler, and so coa
structed as to work with perfect ease, and on: of
them put out of the reach of the engine-man, there is
any occasion for the additional aid of a inert:lt:La
gauge should think not.
Have you any particular sitp7,estions, to nn.k? re-
specting the construe lion of t!:e• boiler ?—Tile I:10A
convenient form of the boiler is, that it shotnd be
adapted to the shape of the boat ; and I slt .111 I think,
that that being taken for granted, the salty would
depend upon the strength of the metal and not upon
the form. It should be made of such strength, that
any indenture would not affect it. Although the
form approaching to cylindrical is of course stronger
than any other font, that which nearest approaches
'to a sphere is the strongest, but a cylinder with semi-
circular ends is best I mean hemispherical ends.
Is it not very possibly to burst a low pressure en-
gine, if the engine-man is careless, or rash enough
wholly to neglect his steals valve ?=Certainly; I
think that they are equally liable to burst, only the
one bunts with greater danger and risk than the other.
_ _

Mr. ellneander Mmma called in and examined.

What are you civil engineer, and generally
residing in Dublin.
Have you any experience of the construction of
steam engines for packets or passage vessels ? I
have seen the stejm vessels in the Clyde, on the
Thames, and vessels in Ireland, and those vessels
lately constructed for passage between Dublin and
Holyhead ; and I have studied the subject with a
good deal of care, in a professional point of view. I
have lately been emplozed by the Dublin Steam
Packet Company, to alter one of their vessels, which
was not found completely fitted for crossing the sea ;
I have altered that vessel, and she is now plying in
the_Aristol Channel preparatory to going to lrelmd.
Mee you, it consequence of your experience, any
•soggeltiont to make as to the sale construction of

the engine boiler connected With such packet•
great patt of the alterations that I made Upon Hilt
vessel, were intended to fit het for going through
the waves, and to alter het machinery ; and anothet
portion of them was likewise directed to mate her
safe as to the engine. You are aware that it is ne.
ce”ary for all engines of that description to have
541ety-valvet. The defects of the safety-valve which
I ..Pere.!, were, that it is not now in the power of
the engit•.' roan to keep it shut; it is in his power;
or th it of any passenger, to open it, however, at all
times, so as to discover whether it be in good order,
by n small chain and a weight being within the
b ile►; it is not in hi. power to add to u *bile in ac-
tion a at.d lastly, this vessel being intended to go to
tea, and to work as the has t'one, try Very rough wee.;
they, the safety-valve is trade equally effectual in every
position of the ship, whether she heel, pitch or roll
'rile weight preserves the valve in 'notion. so as to
,keep it front %Caking, and it has always the saint
effort to (welcome. I will thus describe the nature
licif the valve; it is a hemispherical cop with its con-
vex surface downwards, resting upon a elllar, and to
the bottom of !lie cep a weight is hung which has
previomly been at-just ..cl; by this means the valve is
always steam tigi.t in every position, yet. without
danger of adli,oins-, and must be silted by the steam
when it excee.ls a given pressure; but the valve may
also he lifted 67 a chain attached to its upper side,
which is enclosei within the iron case, and may be
drawn by the engine:mal or any person on board,
and which does not allow him.to keep it.down or to
confine it. We have also found it neceetary to pre-
vent the accumnlation of water upon the top of thil
valve, arising from the condensed .leant when es-
caping; this is done by a small watte ripe destend-
ing from the bottom o: the pipe which conveys away
the waste swam ; it. is a waste pipe for water....
I have thought it advi• dale to make the steam-valves
lar!!e, and that weight which is hid on being of
itself large rn,y admit easily of addition. I have one
or tw•o more precaulions to suggest for safety ; ill
thin vessel there are two bai:ers communicating►, and
two safety.veive ; t',cre is alsa a mercurial gauge
provided with rtctivers, so as to prevent the loss of
the mercury in case of any sudden• collapsation or
disengae.ement of steam, also .a tuLe arias' attached
to the holler, which exhibits the level ot the water in
the boiler. and precludes any idea of danger in the
minds oi the pissengers : these boilers are made of
wrr.in:lit it 3,1, but I do not cunsider them as being
better on that account.
D.) you think (loaf. mischief is likely to arise from
the exiilosiott ot il,. wt.:u!►ht-iron boiler, as from the
esphsion te the cast iron boiler !—Ttlat dt p<•nds upon
Ciilia:llU lit.ll.

Put couttroetion entirely ent of the,questTon ; sop.
pose the form exactly do you conceive thet
equal misehiLl is lib ly ta attend the explosion of the
wrought iron boiler, es the care iron boiler?—lf the
eanstiuction of the cast iron boiler admits of its being
rn tde of wrought iron with equel strength, then the
explosion of the cast iron one would be more dari-
gerous, as it v.ill fly in pieces, whereas the other would
probably tear ; but it is aearcely feir to stop at this
hypothetical c e.e, as we must consi 'er v hat can bt
done in practice. It is scarcely pensible to form cast
iron every wittee equally strong, :nil if a part la
weaker than ti.e test, either on purpose or by accident,
that will not have the safety that would be obt.ined
by a wrought iron boiler ; for instence, in can iroa
boilers it is common to have hilts, and it these be
filed with aeene metal of tHrerent tempera-
i tate from cent iron, mere fusible for seance than
I that, the juncture part first, and it may be made
to tear as 2 va-sui;cht iron boiler would • do; and
again, the W 7, stela i:e.n is so much more liable to
oxydatioe iheu CAA iron, and alatieegb found very
efficient ut first, itestrcogth and tenacity may be very
speedily altered ; (or these reasons cast iron boilers
have been preferred where high presswe et:eines have
been wed ; :end in smelt tubes the tenacity of cast
iron can be suede greatly to exceed that wl.ich can be
given to wreugha trim in Cie came form. I believe
all large boilers have latterly been made of wrought
irou, as it is diffi-ult to make theta of cast iron.
Altbough nu (fiend to high pressure engines in yes.
sell, nor to cast iron boiless, on acepant of the dan-
rer of exeloeion, yet I conceive the chief danger of
chit kini is likely to arise from sorting low pressure
boilers a a higher pressUre than they were intended
:or; ani I conreive that the principal imErovement
to he looked for tneeatter in steam vessels is, to sim-
plify the machinery, and put it in Its: room, which
the high pressure engine and cast iron boiler affords
us the means of effecting, Ow other does not. I
will state another thing as of consequence, vie. as to
preventing a versel takine Ere ; it is advisable that
the furnace and flues. it lee. entirely above the deck,
should at least be inclosed in a case of water or other
nom inflammable m Etter, until they arrive above the
deck. This pieceunon I strongly recommend to be
adopted.
.•
Mr. Arthur Woolfat calhd , and examined.
What are you ?—I am e civil engineer in the Ira.
lige of Pool, in the parish of Illogan, in the county
of Cornwall.

Are you conversant at all with Steam Packets?—
No; 1 never had any thing to do with Steam Pac-
kets; they are out of my line.
You have been long acquainted with Steam En-
gines ? Yes.
You invented the one that goes by your name?...
Yes ; I got a patent fox that steam engine.
Have you any thing to communicate to this Com-
mittee„ as to tl'e object upon which we are met,
which is, the safety of stem) enyints and boilers on
board Steam Packets?—Witla the hoiLts I have
been in the habit of u9iug I,r fourteen years, We
never have had any .accident :it all.
Of wh3t are they con:mut:led ?—Of cast iron.
Are your boilers in genet:ll made of wrought or
cast iron ?-01 c.. 173 it n wfi..lly ; l approve of the
cast iron Loiters in rrelerence tit any mixture of
metals.

o•Jired, of the GON;TitiVC Grim of both dews, including the by Patleou of either sex, with eeersey, :ellatcy, arid attention was not found cOmpletely fitted for crossing the sea ; Ot what are they con:mut:led ?-0f cast iron.
Theory of Generation, etc. Price es. ed. Patients in the country are retlecsted to state wePardcumars I have Altered that vessel, and she is now plying in Are your builtis in genet:ll rowie of wrought or
5, A Practical Treatise on Female Diseases, Including Obser. of their case, age, and manner of Using, onderainfa reatexaoa theit p
*stol Channel preparatory to going to Ireland. cast iron ?-01 cast iron ; l approve of the
• v„: ions on Parturhion, Lactation, and the Disorders incident to for advice acd medicines; and the rained,* w4l be *vas sir•
t ',portant cases. Price lisoCrl. I forwarded to oily part of the kingdom. vs you, le consequence of your experience, any cast jron Loilers tst any :mixture of
a-:i nt...d for Sc!ttwor v.rd Co. rsterooster-rew ti3OS and Co. burgeotir,l3, lioueerie•stresel Fleet street. 'soggeitiont to stake as to the tale construction ol metals.
•
• •
•