New-York tribune., 1871-11-29
SCIENTIFIC NOTES.

= unyr
seventh magnitude. The number '' "''''''''
known IL III ,v:,,> I,ro
Coz, Ou,-Messrs. Wurtz and Willm nave
as,,r,aincd that COLA oil, after hehg su'0ee"" !" ~
rent Of steam heated TO about $50 Fah'' i"scs ts
erid taste and smell. Any race OF fatty acu ~n'n dn
mains after this treatment can only arts 'l" an an Iii
iratou ~ hc oil and ms, be r n%y'a n WiI "" aIen rs
a awtak so,ut ion of carbonate "i s,oa' INC va IL ~
FOR table substitute for olive OH ,,.,,
VARIATION IN HE SOLAR SrECTRl M.-H"'i-
incr. IN "a recent lecture, said new evidence w o.
foand thl, The motion of shining boa! "' - ~ y,
,rum iincs Dr. vogcl had recently snow xvcd "s FROM
one s OF the sun we're different from those OF ns
site side flat is, the sun rotatcs Inc part
give "A Different spectrum from the parts r'''"e
IxpIr.S, or Brass AND COPPER AGAINST
CuoitRA Dr. Durg In reviewing inc s'" ' " " ~ =:
from cholera. hLds that ont OF about o@"V ',''i' ~
,,rcr br,ss and bronze employed In Iaris ana oa.e'
ceas ,,,i, tL la,t outbreak rboier only l6 des'hs
resulted flom Tat disease. Ah"'u'I NJ r,nt ."r
hearing on tnis qn"'gn Is ta. ' . uycr crn Visited
rounded II u Is NV copper ihWN' "'S Nv WI " '
10y tins 'ld' me.
Curv,ru. RrAC1Invs.-Brrtliclot from IN
ysIl,s ~ changes C' pressure ana N"inile produce"
bv chemical combination. dctuce> the following PROPOSE
ton VIZ. T.at the heat invariably produced IN chem
lea! rcarrl si,qm>ils i, to ir applied exclusively ana
r,,t,, -. Ir ,,,irc aIvnys tiEc- place M constant
vonrmc or Is The same thing, augmentation OF VOL
u constant pressure
ANIMAL PHO>PUuRE>,ENCE.-M PancCr has
tec,nil, civ The Congress Of Airal,sts aud fhyslc
,s,s nj Tnria an of MS invc>gations of animal
pho~pt"ro>rcicc lie concludes that this phenomena Is
iiS,,,r >iInt Immediately disappears placing the
rlosrhu". matter medium free from oxygen
fHo, >,. commences soon after the death OF the
nrIIdi and Wien dee t"liil"si;on sets III 1t ceases
Srn\GE pArER.-ThiS article, recently pa
tented France. fthrcat,! 10y adding 10 ordinary
paper pulp. evenly and finely divided sponge; and by
meals a. The ordinai! zap, rInaking machinery the
ni>tur IS w"rk, int" >Ncet- Of different thickness A.
ti- ,r '-,tlS -rcai drdl "i moisture and holds u
fer on- rn'. il j. rpihc ~ important technical "l
l,,tior~ Ia ing wounds il las been used with
coiisiIcri,!c ADV \anitSo.
To CALCULATE rIlI IlEAIING PowLE or
riIioLtiN-H -. Ciair D.vil!c of France gives the
following rulc for inanc the caorf" 'n,cts gwen
sample of oil. which, although il makes the tl""etic
lit lars, than that found in Practice near
enough {" ascertain the relative valnc. Of oils a. nt
F:.' -" ain"ur rarnon hydrogen and "Nycc" con
t.i 4 IN tEr s.tile j, 'Cuud lI aHhI'hlS Str"hl ~"
tiati iiDi the h!l"Ecn occi"hth 81 ihr gen '"'
niii'v tc H, ,acc ~ .i+.G! I'D add T." H.. product
the guntit' OF carbon multiplied r s"a ana ih'> sum
WI. Il" thr nnmhct of beat units III one 6iloGrdh'
SrrcTR. OF TIE NITROGEN GROtP OF ElE-
ME~Is. Iitir h.> examined the srectra of NITROGEN
roephutuS ai>nir, and produced 10y passing
TIN >lark rnr"ngh tlrir era' ch"ri'le taking
,arr to eliminate The bands known result rnu chlorine.
The Irnsf interesting phrnomcnon noted 10y INN
that t!r ,pi1trs ircr.c progressively from the nitro
rtn 10 the auIimony: they h"Ein al Toiuis nral III"
oi-c rcd hnt th' n'It TcranEilc raNs extend thcH1
?. ;,iui. aud more toward the violet IN r1ori"n
tLc r.rnI1.cs "i the crucnts under examination al
II">.ni.i'ct" The metallic character
Cu>iAGIor> ErIpENICs.-M. ChaUvcau ha>
Ia hcoic the French Acad my of science tlc result
.i In IC,carchc> coitI gios epidcncs. lie had r
>.".sy shown thai t, coh.a:i0n caused hy Nirlcn'
j. mons depends ne: dissolved suhstar"s, TN, a.
s"d cormscS winch h'y hold in SUSPENSION N fact
i,.r.t,"n with dissolved substances remain without
I>.'i. AMI lt with CuIpI>ces produces chdraCttl>,
r-u,i,. By similar experiments VI. Chauveau rloVc-
ii M, i mr. diffnecd in the nr are not discn.a:,d
X. g. sDlid corpus lcs. I.c tuId obtained l.!
a. Ing fc yalor arising from The evaporation OF /"
viUicni nPuid may hcu>ci IN inoculation without dan
r"wrii'-. The Naine rc>'iiS were obtained f>~r.'
s',;, I! rh'S, &c.
NITRATE OF SUNrR AND CHARCOAL.-Prof.
Chi"d r, editor of iM Aa'rodn Chcmst eates III that
journal ,;,, when solid nitrate of silver is placed upon
powus charcoal h hisiItion takes place, the result
r that si,orts left behind III the metallic state The
,uri"u- rEca"m'ncn attending the reaction is that the
I,,r,tc tcInr fused y the heat Of chemical action sinks
III" pores q" the coal and ~ each particle of the
ine o, .imai Wood i retained this he
.r more which Show most heautiiully the annual
growth the w"od. the author advises + acIystal
co"i amt ll'" "io~. ~" iaL' dirccird upon re "" h"
.ci- .'. a.! -,ai al;,r cr,>t.l may hc addict.
SotIiuIiING ,Np MELTING PoINr> or FAIRS
IT,. N.rD..I - i.ag,"aor9 A"". directs aitcnj,on t"
i., tln, ir,,N .i.1~ ' uad' Ia 'iiif, II
r!u.ii i.isi,c,ntnr.c Those tat, wh,rh yield
i,,,Urcl> -.lo;iac. tion c-Ic,idlr how th> I"cu-
i-rtr, a.. t-!rl,i7turr AZ "A'h s"h!.icot"n "'ui-
L
Nn,r t't LH aicf mc"1"i 81" a!I""'d I" cool, tntir
t.n.tiHii r.:.l-. FtDi,io ':iun = iui where f"i
i.@.sit l ,"lr. .oi Ii. Grhnr dc ri," d Gca, at
"'.,A IS 'ats Face. Ir Mlnnd llcrc''s to call the
Ia. rd ioIl of soii hc"tion. - tins point Is les
=. 'lC Tan IL, nitiI- i"in. Characteristic the
ai,ci "lrns "t hat att"nln: the chang OF watcr
i.jui's l~ nd to i"p;"a "f liz" melting point o
ir.. hAcd !'la ;r'i" "n.rh Ia mca>ur, drs''r- OF
pR"rr-:u IIrGuy 'NrTr " Tr;L>Cu9I -
l.. I,.t IF nj nd
tIaccd ~ .~ OF experiments, g mm"mcn: IL carly Is
Istl. ior tie purpose {" Iciucin~ az eliminating Ia" SO
on.ary sic;,,.ra lomni y he "c>t ""hron'Ic "iJrct
r~9-c- L c1n i~ shoWI the,Ie!!.aA. that any three
GcIcLt kinds of eas, may hc Iic to form coII"a.
top achlonic 10 secondary We'll ~ primary rpccta.
hu tnc acuai construction o such trplct j. csrt with
di,ui!,e Nr. Iiacourt found thai il combining cen
lcm' made glass containing tri!urItc oi lead with
POSITIVE tense Of ordinary glass. or else positive !cns
containing t.tauul with negatives of crown aud njt,
"f AMI ncatiNc q" low flint, triple ON
a"d that iy ,uls,ituiinca horae of lead for th nt
s st g aa r a4a s hcr Uf G'"T crcrr tn Il nI '+ dr.
Gntcs, u>,s u. Inmate Cf lead and Of titanic gas-
b. mOgcn'UuS tAiOu>h >h"Ui, have at last hcen Ohtanrd
with which : ut,Ia ii c".o:iu,t object clts>
which s,@ hc "thciy free i!"J secondary color. Such
o., .chiN'i. III VIII I'" eicai ;.Nanc, in the oIu,a!
Ari,oy OF N,cxtrI>u on GAs.-Dc La E'r"
tnd Sala>.n have aid =, flr citn;ii' society
of Geneva. switzerland, important ronnlrhit i,ioi
II, which they the following conclr ion, The
action Of magnetism, vhrn only exercised ulon part
Of al. ctr, j,t pi,J ctcd through raIIf,d s> ca.s
an increase Of density. , Tie action ,lcrric
tc placed cquatOrialy between the ioic an ctro
magnet produces r"rted increase of resist.
.iC,. h:c greater ln ioii'oi i"tn, cnIdrcIyt,
al the gas 3. TGc Hctlon creates IL decrease Of
Ic,icc when the j., Is "ii'' tCd ~ the line o the axis
nc,wccm the ma gnctic poles 4. When inasl, tic
n,ton consists in the iinli..sio" oi 'ontmued
no hnsmrr Upon tn, ir1sie @ If ,h r. iT'a,nTn !" IN il
cd def IA