Vermont watchman and State journal. [volume] (Montpelier, Vt.) 1836-1883, 1849-07-26

u = A Mr.. Arthur Dunn, an ingenious En-
gIsh electrician, hus made an ingenious upplica-
ton OF electricity, by means of which signals are
given that indicate the pressure of steam in the
boiler Of an engine. Tubes Being filed with
mercury are made part Of galvanic circuit
and connected with bells as the mercury rises
from increasing pressure in the boiler; the cir
cult Is thus completed, and the bells respectively
rung indicate the amount of pressure. In this
way attention is called to the condition of the
steam the moment it exceeds its ordinary and
sale working condition.
o. Important discoveries, relative to the
properties Of gun cotton, are announced in the
scientific Journals abroad Among other things
it Is said that when dissolved in an alka it has
been shown to have the property oil precpatng
metals from their solutions and by floating over
glass plates solutions of silver, or mercury, to
which the gun cotton has been added, mirrors of
very fine description are in this way readily
manufactured
Contention of Inrentors A convention of
inventors has been called to assemble at Balt-
more on the 2lst of August. One PROPOSITION
that will be discussed conlemplates the protec-
ton of the property Of inventors from the depre-
dations to which it is now exposed By The capri.
ces of IA jury trial.
"Jeens" Of the Boston Post thus irreverenlv
hits off the one idea" gentry, of which there are
several Abroad:
Brown and his wife were walking out last eve.
ming, when they met n man who had The misfor-
tune 10 loose pepper. "Why is that man an ubo
ltlonst:' said Brown. Mrs Brown "didnt
know, but rather thought it was because he
couldn't see both sides !" "Good," said Brown,
"but that isn't tit is because he is a man OF
one eye dear" Mrs, Brown tainted.
WeSiern Ha-Try horse trade here or an
of IL yiSht IN
one of US the other day, when, CHANGING to pass
by the boiler of the bath house, he asked with
great simplicity of manner, of a strapping coun-
try fellow who stood by, What is tbalar thing
for p" "Scadng hogs, you get in ?" was
the gruff' and quick reply !-Western paper.
Germans in .4merica. There are in the Ohio
Conference alone forty three German Methodist
Preachers Most of them have some knowledge
OF English. Lately they have formed themselves
into an association for their mutual Improvement,
and also TO devise measures for preaching the
Gospel more extensively and effectually among
their brethren in this country. The number OF
Germans in the United States is estimated a,
about TWO millions, and is rapidly increasing
I'm artificial Leech.-We learn from an arti-
Gle in the Paris Journal des Debats, quoted In
the Courier des Etats Unis, that an important
discovery, which is likely to be of the greatest
service to humanity, occupies al this moment the
attention Of the French scientific world 1t is O
mechanical leech (sangsue mechanique) which M
Alexander, civil engineer, already celebrated FOL
his useful discoveries, has submitted to all the
scientific bodies, which, after satisfactory trials,
have caused this Sdngsue 10 be adopted in all the
hospitals, after having proved, not only the i'm
mense economy Of It's use, but, what Is better
the decided advantage which it has over the nat
ural leech, often rare, always repugnant t.
the patient, aud sometimes dangerous The
President OF the French Republic has given or
ders for the supply of the apparatus III every
commune where II may be found servcable By
INDECENT atients.
Sah.-The activity in the salt manufacture il
the suite of New York has not been surpassed il
any former year. The quantity manufactured
since LIST January Is given by the Syracuse pa
pers, at III, 1866 bushels OF an increase o
40l, 4SS.3S bushels over the previous year. Ow
ing to the low pnce OF the article, the manuiac
turer is said to have scarcely paid his expenses
Jour. Com.
"A Portrait In recent conversation abou
great men, one gentleman asked another if HI
had ever seen Col Benton, and if SO, 10 descrb,
him. "Why," said the Intercepted, g" whethe
sitting, standing, or walking, the Missouri Sena
tor looks as if he we're carrying on an inward
and gentle remonstance with himself, for being
OF so much more consequence in the world thai
any body else"
The cholera at Cincinnati IS said to have at
tackled the horses and swine, many of which
have died of that disease.
Trees IN China. Mr.. McGowan, Missionar,
to China, las sent over to the American Insti
tute seeds OF the plant from which the Chimes,
make their grass cloth something like silk an,
linen; the seeds of the tallow tree, from tn,
trees OF which The Chinese make their candl es
ana the seeds OF another tree frou. the berries o
which they manufacture lamp oil. If ali ,hes,
seeds grow and thrive here, their introducing !
into oul country will be very useful.
W Gov. King Of Missouri has come ON
publicly in favor Of Col. Ben,on's views in rela
ton 10 slavery.
W The Niagara suspension bridge hal
been strengthened by additional wlres,and new
floor laid. 1t is now capable Of sustaining 25t
tons.