New-York tribune., 1867-07-31
SCIENCE.

MAsNFrls AND DrAsAGNETTg FypSpaSSEISfi ,naSr,rS 81
IA Chantard baa reported 10 the flench 90 eectro
kclenees his plan Illustrating the Acoh U OF
Ssgnet on certain eagS Hf ptsso soS fcr Instance hat
tufo thus forming tough soap bubbles hed win OXYGEN
gas As these pass the poles of the teE
BY their superior gravity. BY throwing the powerful
faye of IlGIes hne light on the bubble the experiment
wac plainly seen by large assembly
ESTIMATION OF METALLIC SILvER.-AccOTd-
hgtO ClaWsOn silver Is Wholly prceiptatcd nom solu
ton Of suh9te q silver Wy psnSSpg E ntC eopoP % mass
eAsily washed with water to remove any tI'Ss 9cn S S
escapes; wash II until the water IS free from srt
aCtd thcn dry and cacine It, Ihe silver ~ T a, ,Ie,,h
ho The result il found tO be very exact when deons
With nitrate Of silver IN solution evapYr1be b dSsoy. tie
snlpba{eof slycr boiling water when II VIII Dc io""'
yoI receiving The metal CADMIUM 1
INpIuFNCE OF CAPnLARITY OF CHEMlCAL
l,T,cT-N BecQuerel has communicated 10 We fIehIn
Academy of s0aDccs his series OF eAPel5iIenIs W, ,o
nas,en,S az the cBillaTity on chemical OecOnpOStOs
and eombnatiODs. He makes IN tube having Two lGG
veIsed branches, fissnre OF Infinitely snaI waGtn & ao m
in tanning liquid pro tosulphIet of SO
sn'o eIectIieaI action Immediately eDsuos; decompoSi
bon aud decomposition are manifested by e me
which appear on both sides Of.the hSsure Inc eAPeii
mrNts Of Hpcquerel prove that the fssure mas eai III
1uence the nature OF the prOducls oI VI,
Tor the salts formed not always those Inc"e" "
theoB
Nxw RAILWAY SysrEM-The Rhenish Railway
Company the fr TO test ON large scare a ii LOT
inoh rail instead of The common rail- whic. IS ab0ut
shree inches deep thus Te4ns s hS & 70 Rey ~ sS
Sens oil HObOken N j. Tho hight 0f the oiignaI ralis
made under his direction in England, and after ms od
els for the NewJersey railroads, was about SIX inches
The niDe-Dch rails used by the hnclsh Railway company
yestenpOn he'd of plates and then covered with five
Inches Cf gravel the top OF which ls twolnch layer
Of earth wen stamped down. so that the head OF the ran
frolocs only inch above the surface The two lines OF
ts are connected every three feet 10y rolnd bars OF non
nrmly boiled below the surface OF lhe SIoH3 SO udt
the whole appears fhe haIiburied a0ueI ol IGn n
similar method of fastening the rails together ana sup
porting them was triCd some years ago Oh le le h
way, near Paterson n. j.
NFW Process FOR BLEA ACHING.-M. VI. Iessle
De MOhay Marechal Of Meuz, France, are showing
Etthe Paris Exposition specimens OF Ders, thread and
new process which is sad 10 be more eNpedlOus th
he old In bleaching cotton lmen hemp, all grease or
atty nater is first extracted by alkaline bath. II Is
lben stepped in solution OF manganic acld OF pelhu
Fanate OF with the addition of suphate Of maGnesa
After remaining say IS minutes II Is placed into alkaline
solutions or into baths containing sulphurous ac miro
unt the layer Of oxide of manganese which coats 1t is
entirely removed u Is then washed and again placed III
nangahc atjd or in the permansanate of soGi' aItep
Garin the alkaline ISOLATION, or in the solvents men
he Is completed. In bleaching wool or silk the Same
method is used except that the alkaline liquid is weak
SOlutiOn Of soap, and the only acid employed is SUI
khnrOus
INFLANaIABIE CLOTHING. - Ladies' light
tressesnay made fire proof by means Of the ungste
soda Although since the Introduction OF crlnOlhe
fghtful accidents have been more frequent no serious
tentoH has been given TO any plan lor IemeIymg the
EN Qutc.htely, however, sudden death caused Dy
nefoT acb has prevented the union or the bousesoi
Savoy and Hapshurg- Lorraine. Ihe Arch0uchess Nt
kida, the afanCed bride OF the SIaWn Prince OF uey,
Nas locking out of the Imperial ta3ce at SchOnbfun
and changing her position tIud GA lnclier match
Which had been neg gently dropled on the floor. In
Vtanty long, light dress was On fire. and Was not eA
frQuished until late. After short interval OF eN-
Ireme suffering che expired. The London Lgtd says the
public mind Is now IN ripe condition for the enactment
M the most stringent precautions against stal accidents
tTOm burning; and the warning which was fepeate1y
kent forth bat van through the sad fate OF poor Da
firs who had Nentured too the foOtllghtS, Will
been aside by the most miserable OF accidents ana
when mcfer match has proved even more adverse TO
tbe pacific relations Of two rival powers than te cannon
Ade Of CstOzza the yysh0tted broadside OF LISA
WHEATSToNE's New ELECTRIC MACHINE
Ehjs machine consists essentially of bar OF iron bent IN
horseshoe form around which cOed covered copper
wire, in the Ordinary electro magnet betWeeh ine
poles TevOlyes spindle carrying covered copper WIRE
Insuatcd but arranged That either end VIII De ef-
haey brought into contact with each terminal Oi the
wire surrounding the iron bar The spndleS so arranged
present each side ia succession 10 either limbo the morse
kbOe endless band passes around the circumference
bf tOlcraby large fly wheel aRd around the sphule,
lhus giving motion to the latter When the spindle Is
kevolYed rapidly the horseshoe becomes nagnetzed
powerful electric current being induced IN the wire heX
the time and as tho motion is continued, TIE
bf intensity is obtained. Ihs machine differs from Mf
Ndes IA this respect that In the latter any body 70
BE- submitted 20 the action must form the terminals
Of complete circuit, whereas, IN the wheat
stones machine, such body would form 81
bridge, or short eut, ny when the eieettlcIt{
completed its circuit small machine, turned by hand.
capable of burning piece Of iron wire 20 inches long,
end xteenth Of inch in diameter. similar re-
Sut Is obtained making terminal Of iron ap
proaoh the other terminal OF copper the iron wire
Immediately takes fire and burns with brilliant cOr1uS
sstiOn. When the current passes between points of pre-
bafe1 charcoal beautiful and steady light Is produced,
Ihowing that an electric light OF great brnancy can he
obtained "A small scale with a relatively small eXpen-
ure OF the power required to give motion 70 the ma
k.zzza.z1z.slzsaazzzzu-r