New-York tribune., 1868-03-04
SCIENCE

Exr,Sr,, VApIErrEs OF THE PARRoT.-Ihree
kinds Of birds, which were proeaD{r {rhnse were the Ep
s,s STy IS the DrOnes Of Msuri9s & ana }Se
sotaire o. Rodergnes s9sgasesT s%a and Australia
kpr,r,c1AI NRRy1NE.-Prof. Wurtzy OF the
colese Of France has succeeded by yRtaeuc RrSce ~
In forming strong base idessi snSiactea erysasaSie
abStance derived from the BRAIN and containing p1I pa
poOs and nTOgen e @f sSVn sho%s e n grsea
nc doctrine OF types AID substtutions OF winch o 40
present, the ablest advocate. 10
SANITARY SUcCEss.-FrOm paper n neau roD. oI
fore the Society Of Civil Engineers in Exeter Hall LoT se
by b Latham E y appears @ t" Of Tss and with
great benefit 70 the varions localities maS been re.
were named In which OF typhu @ ~ 70 Io ner
soS 10 one town. Croydon total saving in Is years
amounts to &239,99S. 1 H. NJ
HoTTINA.-This powder, lIivente%, lnt ,I,,,Sgt I'M m
t1ottin Of paris will make linen nfe rool Hie0
airine k whiteness. when mixed WIN equ"ht h Snr
ef starch and gum The poWue 70 f aibospbate of lime
and altering with animal carbon, teh sca
SoBeentrated, when i've per cent o ANA Tie resulting
CRYSTALS arc pulVerlLcd. -, -,
powpER FOR CLEANING JEwELRY:-The high
RSlT ~ in in nislnc and polishing gold, induced Dr. w
Norman 10 analyse lie found consisted OF 20 per
1oninm Isal aInmOnae IL is made by sutdectmg iron
10 the action Of hydrOchorc acid After the hydrogen
saded The precipitate is filtered at very low tenn
perature 70 prevent RAPID evaporation
OxYcANrpHoR.-C. G. Wheeler, in n note to
th French Academy Sciences describes the action OF
a1ueous hypochlorOus acid the essence OF pentne
and on camphor From ene of the chlorinated com
pounds obtained he has been able TO separate pOuy con-
fanlp0 10 atoms Of carbon, 16 OF hydrogen, ana tW0 W
xvoen which cTystaZcs in White needles, - sOuuie III
Sfco6oi insolnble n water and has 0d0r resembling
camnhor OxyeamphOr sublimes without decomposition,
and Is sOnoTpbous with the camphlnc aclu OF
TIE EMBRYO HEART.-Herr 5. l.. Schenck
has published paper the physiology OF the embryo
EXAMINING heart Of the chick in the egg OF the FOWL
ne discovered that its movements are at nis quite lhde
MT al central
ared "a simple cOntractiOns OF the protoplas Mhen
lie heart is removed IL s beats II mataIned at teh
nerafure Of from 36o Cengrade. The most power
I'M microscope fails show any trace OF nervous ganga
hence be concludes that the cODtracons OF the heart are
cue SIMPLY to the action of heat on the protoplasn
EFFECT OF ANTISEPTICS ON NANIMALCULE.-By
allowing colpOda found in vegetable nfusiOns TO come
in contact with Rntisepcs while under the neld OF De
microscope BiDz Of Bonn has discovered that Two
kinds Of destructive action ensue. Chorde anu hyPO
snphite OF sodium ChOIate OF potash ana auIl py 9s
IOciie action caused the creatures 10 burst We 9
rectlY poisonous action prOduCedby nitric sullhuf
noetc and tannio acids permanganates cleoSote, COZ
FOSve sRblimate quinia, chlorine biOinne, anu 1 ~
Acebe acid and qunia produced the most pOWefiu eI
feet Neither salacn nor nitrate OF stIychna eAerteu
any immediate influence.
HEAT GENERATED BY ELECTRIC DISCHARGES
A paper recently read at the Berlin Academy by FOg
RcndOrf contains the following deductions from expert
ments made by the author: -. j..
L. The direct discharges Of the machine are hOltef AT
the positive than at the negative pole. go, -, .
The Temperatures between the poles varies Win inc
form Of the electrodes If the electrodes are spherical
the temperature is within certain hms-dlecly as the
diameter OF the sphere.
q The elevation OF the temperature between the cleo
trOles depends on their nature Under like conditions,
the more volatile the metal forming the eectOde, the
higher is the temperture produced