The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1867-11-03
AMERICAN NEUTRALITY-SUSPICIOUS. ASSOCIATION.
Scfcntinc Notcs-BenzoIc Acid-Novelfies I
the Fair.

Scientific Notcs-BenzoIc Acid-Novelsies In
the Fair.
Tho weekly meeting Of the Polytechnic Association was
held Friday evening in the rooms OF the institute,
Cooper Union Tho chairman Professor Samuel d. TIL
man. A. NJ, read series Of recent scientific
discoveries, from which learn that petroleum has
teen found recently in China. Pskin. The mineral
spring Gettysburg has been found be strongly
impregpatsd with ltha II has been ascertaned thar
some kinds OF VINE contain zinc in the form Of salts
I presence TO DO accounted for BY the adueaon Of
the wilma by isingass containing about two and . half
per OF zinc Gycerno has been used successfully
in preparing anatomical specimens. This substance
10 frequently applied TO wounds, and II has been
sometimes, found that It's action has been innam-
matory, instead Of healing. This 70 % b attributed
10 the presence Of oxalates formatcs. Lebg,
years since stated his opinion that The Of the silk
worm disease the nsuf1cisucy OF nutrition afforded
By the mulberry leaf. Recent experiments confirm this
opinion. European investigator has discovered that
on the tympanum OF the ear minute mushrooms
formed, which, " not removed occasion considerable
annoyance Arsenic Of potash will destroy them COM
plseiy without danger 70 the system. Referring this
another proof Of the theory diseases are
caused by the presence Of nfusora In the human frame
m % BEEN an
before the notice Of tho scientific world He confident
that Numerous other diseases will DO found have
similar origin All life tsemsd with infusoria Take
little dust from the leaves OF book and place in q cup
OF water in the sunlight; in days. n examined IN
der the microscope, will DO found to contain
Of the most horrible appearance. DR.. Edwards
confirmed these observations nr. Bradley was Of
opinion that the Institute had quite enough of those
nfusora lately and for hrs part be could not un-
dersand how any could discover mushrooms grow.
ing the tympanum OF the ear DR.. Van der Weyd
answered this difficulty by stating that surists by
means Of . spccuum called auriscope can examine
the inside OF tho strong ray OF light 10 cast
any OF ths interior desirable and substance
such the infusora alluded TO- may be removed by
very delicate spatula Then u can b examined under
the OF benzoic acid and the process OF lis forma
ton from naphthane. Nsphthaline almost vaueess
costing but q cent pound, benxoic acid costs $780,
The OF manufacture introduced By Castelar, has
been pronounced By tho secretary OF the Chemical Com
mssion Of the Paris Exhibition TO be one oil the
important inventions OF modern technical chemistry.
Benxoic acid. and It's derivatives largely used In
dysing confectionary-the manufacture Of . flavor.
ing substance similar 70 oil Of bitter almonds.
Several new inventions OF q valuable character
stove which IL claimed will obvate the evils arising
ia the old form from dirt and the inability OF the tin
resist the action OF heal II 10 not unlike Argand
burner except that the minges with the air before
chine which has obtained the prize The late fair and
an instrument for lacking and stretching carpets
exhibited BY Mr.. Harding Dr. Rowc showed q new
gearing Mr.. Botchsr presented new mercurial steam
gusge Mr.. Fisher remarked that he had NOS much
faith ia guaees Of this class Once no took in his
hand and the heat Of hs body caused the mercury 70
Indicate three pounds pressure OF steam Eggs pre-.
pared by Of compression and drying 20 ress, tho
action OF tho atmosphere and other OF decay
presented. gross OF eggs prepared In this man
Messrs Parmelse, Root, Rowel, Trowbrdge, Emory,
Tove stetson, Barber, Peyton, Maynard and Van dor
Wevde we're appointed COMMITTEES TO investigate this
various methods Of testing boilers and to report thereon.