New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1876-09-16
APPLIED SCIENCE.

u
the addition Of chloride of calcium 20 the glue,
which prevents its drying completely as 20 be-
eOIfe brittle. Cine thus treated van adhere 20 sias,
metals Sc. and can be employed for anxang laneis
to bottles.
DYEING BLACK WITH CERTUM ShTs.-Prof.
Boettgsr eaHs the attention Of the Physical Society
Of Frankfort TO tho recent introduction Of the bisul-
phsse OF ceriRm in dyeing especially to the produc-
tioa With it. in connection with chloride OF aniline'
Of an inteuse deep black cotton yarns and fabrics
He found that by dipping The yarn several GueS'
alternately, N solution of eht1r1ae N 5 =;
slightly aeidifed with hydroehoTic acid ana 10 q
solution of bisulphate of ceriu ana nnaly IN 30
atiOn Of bicOnate Of potash, II acquired remark
ably beautiful black color
BRAurIFrr BLACK FOR STRAW HATS, &c.-The
following process which is said to afford beautiful
and durable black on straw hats can be readily ap-
plied If desired with bat little trouble or loss Of
time by cloth dyers The hats are first placed for
several hours in q moderately strong soda, or lye
hath and after rinsing from it, are stepped OVER
night in an old snmac or gal bath. On removal
from this, they arc allowed to drain on we'll and
placed for two OF three hours in pyr0hgnate OF iron
bath. They then exposed to the ar to5 some
time when they almost blacken, and rinsed, anu
dyed up lukewaTm with logwood, and Drawn
through a weak solution of glue, and dried and
brushed.
NEw HYDRAULIC CENEKT-A French chemist
has succeeded in producing mineral composition
which, IL is claimed surpasses hydraulic cement n
js use as mortar and in its resistance to the acuon
of water while il Is also SAID to be Unaffected by air
or acids, and to acquire stony hardness at ESQ.,
which il retains, even in boiling water. 1t Is pre-
pared by subjecting mixture of 10 pounds OF SUI
il,ur and AZ pounds of pUlyerized stOneware anu
glass To gentle heat sufficient 20 molt the sulphur
and stirring it until it forms perfectly h9nOgene-
cool m melts at about 24So and can, like
pbaltum. be repeatedly used by heating 1t gently
AcTIoN OF NITRIC ACID ON YETAIs.-The subject
indicated by the beading of this paragraph has re-
Gently been studied by Mr.J. j. Acworth, who ex-
plans come points which have often led to confusing
uncertainties Thus nitric acid acting in the cold
on copper should yield nearly pure nitric oxide but
does not always. AcwOrth finds that as enpric
nitrate aecumulates in the solution, nitrous oude
begins to be formed; and that when the above
named salt becomes sufficiently abundant the latter
gas is given off almost alone. III ammonia mtLaIe
e. added TO the nitric acid during its action on cop
per the gases evolved cOnsiss chiefly OF NITROGEN
with nitrous oxide, and smaller quantities oil niule
oxide The acid, acting upon zinc on persnfy 40 th9
presence of ammonia nitrate, yields little gas Dut
nitrogen with silver nitric, but no nitrous oxide Is
also formed
OLIVE On AND GLYcERINE As A PARTIAL SCB-
sTrUIE FOR YOIK OF EGG IN TANNING,-lt Is
proposed by Kathwerner, as measure Of economy
10 substitute glycerine and olive oil npart Tor the
yOkg eggs IN Iuub III tsthilAAe ~ Nv
skins instead of so yolks but 20 might be used IN
connection with "A fluid ounces of good olive oil,
and "a fluid ounces of the strongest glyeerine The
yolks should first be rubbed with a wooden pestle,
and the oil aud gsycerine previously mixed, and
we'll shaken, should be added IN tln stream VIII
continued stirring III the addition Is not too rapid,
an excellent emulsion will be formed by eontinue1
vigorous stirring for about four minutes. ms
abould then DO carefully mixed with the rest Oh Ire
dress1ne and be well absorbed by the hide. The
article resembles in the whole process, aud IN us
final finish, that prepared entirely with eggs
TNppovK,yyST IN THE Asraox1A-SODA Process.
The following improvement III the ammonia pro-
cess for the manufacture of soda has been patented
IN ENGLAND The solution of chloride of ammonium
formed is mixed with carbonate of magnetism and
distilled and the carbonate of ammonia which
masses over is again used in the manufacture OF
soda. The solution of chloride Of magnesium re-
naming, which also contains some chloride OF
sodium, originally present with the chloride OF
ammonium is concentrated, and the chloride OF
sodnn removed from time 10 tiUc il erystalzes
ont What remains is chen ealcined with the i0r-
nation Of hydroahlorjc acid and saglcsia Inc laJtf
IL reconyeftcd into carbonate by tile gaseous pro-
dprts of combustion from thu furnace The separa-
tion of the chloride Of sodium before the oalelnlng
IS important as otherwise the chloride Of magnesm1
will rot be deeonp0sed by heat alone partial
decomposition 0f The chloride OF magnesium, hoW-
ever said 10 be mere favorable to inc conversion
into carbonate than complete decomposition
BrsSEyER PR0cEss WITH HoI BIAsT.-H eyrowsky
states that dHrns the Summer of 1874 ct the Besse-
per works 10 Zeltweg 90 to GO charges wefe made
SIMPLY With hot blast of about / 200 with cast
iron the analysis of which gave 0S per cent silicon,
2.2S per cent carbon % per ceHt manganese After
the fusion il Confined OF pcr cent silicon 2-3 per
cent carbon, and l.3 per cent manganese The
charges were very hot and the expectation, founded
on theoretical considerations that slightly car
buretted iron eonld be Bessemerzed with hot blast
was confirmed larger than usual quantity oil
ends of rails could also be thrown in amounting to
Is per cent instead Of - per cent rs with cold
blast Among the practical difficulties that pre-
vented it's continuous use was the decided enect
upOn the retort, which often became useless aitef
two charges instead of withdrawing an average OF
liz or Is: and, bcsides all portions IN contact Wlth
the hot blast were intensely heated thab tbcy
rendered paanimlat0n dcBlt. aud II would require
hang practice to aeclstOm che wcTkmeH 10 the neat
Fer This reason the use of the hot blast was aban-
doBed for the present, although INC results Neir
considered favorable
A paIxTEu's INK, EASILY REMOVED FROM WASTE
PAPgR.-Ths following process for the preparation
Of printers ink that can be far more readily re-
moved fram waste paper than ordinary printers ink
has beer patented by Kirschcr & Ebuer. Iron is
dissolved in some acid, salphHrie, hydrOchloric,
acetjc. &C.. wiz answer and half Of the solution is
oxidiged with nitric acid and added TO the other
half ard she oxide prceipitated from the mixture by
means IF soda or potash. The pFseipitate is thor
ouehly washed and treated with equal parts of Solu
ions Of fannie and gallo acids and she bluishbiaek
or pure black pigment formed Is thoroughly washed,
and dried. and mixed with linseed-oil vnDsh, amt
can then be Immediately used for printing from
type.. copper, wood, steel or Stone Waste paper
3nfed With IL can be blcacbed by digestiBg 10 for