Star.
London, England, 1817-07-26 00:00:00

posed frost to the rre have eracka generally by co-J•
ing after the engine has done wor:"ov:, ; I have Imo an
that in three or tour instances haps, in an bk,...r
after the etwine has done t`.'. ping, the tubes bc:;,ve
have cracked and the (,t!:n n:)r.

Are you not aware :':at the robes w!iich were
cracked by thr application cif firr, raiht have vi.ot
th,.7 water pressure of which you before s•icice,
most al:y conceivable annum 2—Yes, I su:ipose ;!iiry
would.

In el.!! of cepl.)i:on, which woull pr.) :•!ce t!,r
greatest mischief, thit of a C.ISZ ur or a wrought ir.rt
boiler ?—I suppose the greate:t danger w .uid be in
tl,e wrought iron Ira r.

1' -,r ellat reason ?—Because the cart iron uniformly
cracks at ti,c I;n:tom iic?.:•rer.7,.i.ti the large part of ti e
trines ; the bottom tubes have cracked on the
side, so that the water went away.
Did you never hear of any instance where a cast
iron boiler has exploded in another way ?—I have
heard of the late misfortune at Norwich, and that
has been suCciently accounted tor to n:e, L./ its Lint;
made so very improperly.
!lave not you heard of other inn: pees of cast iron
boilers exploding ?—1 blieve okly one.
Is not a cast iron bailer liable to be exploded in
fraitnients ?—I should think it would newt happen,
iji it was made as cast iron boilers ought to be made ;
i suppose we might mak., a cast iron huller that would
' explode and go to pieces in that way, it it was itone
on purpose.
Have you any other sumesii,ms to male to the
Committee?—As to safety they may tie made
as safe as can be conceived of, because they will let
the steam escape when it is of an imptoper
and these engines I am making will save in fuel very
materially; they are on Woult's principle; they wa
save two.fiitlis of the fuel.

Is it not easy to adjust a safety valve to a bniler,
which shall not be accessible Coale. engioe,,t d!rectir.;
the machinery. which shall suflictently protect the
boiler from mischief ?—Yes, it is quite practicable.
And so to adjust it that it will always act
adjusted it will always act, and always be to be cle-
pended upon.
Then you would recommend, in any btAer, such a
safety valve to be tmployed ?—Cettainly.
Besides another under the ditcction of the man who
works the engine?—Yes.

QUAKERS.—Goon AoricE, (rem the Yearly )rvi Ale
of the Society nt Ft iendu

"In our last year'. epistle we Mlt,' remark the failure of some
of our Members in paying their just 3:ehti. We have 13-en arsin
deeply pained on finding that some di:gracelul ca•ies of this
base since occurred. Whilst we lament the rrel.itiiim of spin
as have thus ',minded their own peace, ;yid brouel t riindi isola-
tion on themselves, we aloe feel very it.' Li. sly limn inr the near
relatives of these, and of their creditors who have • titre 3: t
them. In adverting to these cases, it is our snl that the
misconduct of those to whom we alitl: may be a caution r.. oilier,.
At all times, but more particularly in the pre..elit depreiistil state
of trade and commerce, it v.lll be very useful fur Fnetils fre-
quently to inspect into the state of their own property, to keep
their concerns within the limits of Christian Cl4l:Cn rime, that
should any unioreseiin reverses be experience!, th,y in..y faq4
hack with feelings of consciuns lit:Tiny. And we w-uld OTC.
daily recommend to Friends of discrituication and souml josh.
Aleut, iii kindness and love to watch aver their brethren for gool.
Great advantages would result from early, repeated. and private
advice to young tradesmen, who from temporary sutras and in-
experience may be In danger of exceedii g their capital, a:td of
Imps udeutly ea:mining their business. Our sympi.thy Is math
righted for chore who,-after fair pro .pects, have, trom a sudden
depreciation of property, been suhjected to mauy diSicul•tes.—
We wish kindly to encourage such ut these Z.S have it still within
their power, to a timely contraction of their domestic expenses.
And we desire that their trials may be lightened by beim:Odin:lin
their offspring a disposition to Industry and economy, and a wil-
lingness that their expectation s.rou. 1.1 not exceed those Pnaa
which become a Christian character; this, we believe, would
ultimately tend to their greatest good. B Lire we quit tube
jeer, we would remind our friends of the forma Ltlvice Of this
meeting, that where any have injured others iii their pruperty,
the greatest frugality should he observed by their.seivet aged tae
milks; and although they may have a legal discharze front their
creditors, both equity and our Christian profession demand, that
none, when they have it in their power, should rifst
ajust restitution be made to those who bate suffered i3y them..."