New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1868-02-10
SCIENCE.

r,.epovrn coxtSc PRocEss-Messrs. Carver
Co Of St. EtieDne, France have suecessIuiy %
gases are collected drawn OF through pipes aud eo1ea
Prom the liquids condensed Denzine' napanShe, ~ @
condensed gas used for Illuminating purposes Inc pro
cess is said 70 give prom OF 90 Genus per i, anu g
Of t,oOO,OOO annually
BLIND BEETLEs-M. Oh. Lespes has published
amemor cOleOptera nhabitlng eaverns Heexaml1,eu
specimens belonging TO five distinct families OF mi
taken from caves, and was unable TO discover even
nentary eyes in any OF them The optic nerve 70
20 be undcveoPed; the cerebr, gangs no P sI bodjes
each other and have the form OF two Simple o N Il
developed do possess ewes The absence Of IN tnese
beetles wen as in the fishes OF me % arrest of
winch live IN world Of darkness, insfate iiiions
development caused entirely by eXtefhai con,u'
ANNATo.-W. Stein has examined "a, ann a1na,
prepared by DE Vry in Java from iiesn tin Win snl
rhuric acid, and finds that II gives an acu oed Nv
taniug bitter principle when xxx rednces the salts
of copper About Onehalf OF the mass Is iaI al" o
residue is soluble I'm caustc ana cafDonaSu akaivs'
sonous thus formed the addition OF acids Yield IN
pure birn. which appears 70 contain ItIoEl III
lion and which, either alone or aiter dssNihs IN ah9
andadding asnl quantity OF ammonia gives on the ooor
of musk
New CARBONATE or SODA PROCESS-M;
Kesser has patented in France the following simple ana
apparently economical process for making carbonate 81
soda. Common salt Is first intimately mixed Win sesl
oxide OF chromium either alone or WIN oNlu S VI ~
ganese ChrOmate Of iron or chr0mate OF le3G may NC
nsed and perhaps good chrome IRON orc ne 5 70
dients heated 10 redress IN furnace ana ~
aourrent Of steam. The hydrogen OF the steam WSs
with the chlorine Of the salt forming hlurOchoIO ~
Nheu the evolution OF hydrochlorc aed gas ceases ,
charge containing chromae Of soda is withdrawn anu
after being mixed with proper proportion OF coal -
again heated without steam, when sesqnlONlde OF Cu
MUM Is reproduced, aud the carbonate OF SODA mus
formed is separated by hXivatiOn The sesquoAue VI
chromium again ready TO be mixed with SAT- ana n"!
Dc used for an indefinite time
THE COMMERCIAL IRON ORES OF GREAT
RRIrAIN.-Robert Hunt T. r. =, keeper OF the Mining
Records of Great Britain, publishes the following lls Q,
varieties of commercial IRON ore produced ana use
that country showing the per cottage yeid OF
Of each variety. and the proportions III Wlch tney
are employed in British iron manufacturers;
Per cent Proportions
Of IRON. in which used.
Red HRmatite .................6513 Is per cent.
Brown HPnatitc. ....-.........4l4O 10 per cent
O0litic brown Hgmatlte. .......3JRO 20 per cent
Black Band ...............-....37.s0 a Der cent
Arg1llaceOus Ores. ..-.-..--... JOts) .
SpathOes Ores ...............-. 1923 per cent
Magnetic Oxide. ..oo.lV
n will noted that only two per cent OF the DlacA or
magnetic oxide and per cent Of the anhydrous sesqul
oxide iron produced; the remaining ores men
oned are rich in irOn being either hydaeu sesu
oxides or carbOnates Of iron SXtyeight per cent OF All
te ores used contain less than IS per cent OF IRON