New-York tribune., 1874-04-13
:. a,s.i,loa wn..r ara stir in ammonia while cold.

g, III nercentible odor is impaired Press the pre-
cpitate formed III linen cloth, dry 1t IN modIo,
otelv warm place. and reduce IL to n hne po"uer'
Mix parts of this powder iphosphate OF anioula
magnesia) with I part of tungstate OF SODA, ana
parts OF wheat starch and sultclent lndieo-oue w
impart a blaish tint. Care must be taken that 'ne
materials perfectly free from lron anu ,ni,t 90
iron is introduced in any way during tne opSIa'o
For use the powder is stirred into about doubie ,c
quantity of cold water, and enough boillhg wafer
then added. with continued stirring, to produce
viscous liquid, into which the articles must DC
dipped.
MECHANICAL PHoToGRAPHIC PRINTING WITHOUT
A PRRss-Ihe following process, devised by Jacoh-
SEN requires no press and is adapted to printing on
round objects as vases. bottles, &c, and indeed
may, perhaps, be used with colors that are to De
burned in. A carbon picture, formed IN the usuai
way ON a glass plate, is surrounded by a wooden
frame which fits closely to the glass; and into when
is poured. when not too warm mixture of one part
of gelatine part of gum arabic, aud two pt Oh
elycerine When this has stilened the frame Is re-
moved by the aid of knife and the geiaine plate
with the adhering carbon PRINT Is carefully nVeISu
u Is SGf w.'o Or bengoe without the addition of
any Varnish and distributed by means of glass Iol
ler with ground surface. sheet OF uneoaeuiateu
albnmen paper is then ald upon 1t, ana aleeI ptlns
rubbed gently with caoutchouc rubber Is M ui'mn ,
from the plate. The paper must not remain 700 che
upon the plate or il soil the latter by solution
! of some of the albnmen. 1t Is not necessary TO
dampen the plate, since it is damp enough to yielo
several dozen impressions, aud when exhausted y 80
microscopic that it viii again absorb enough HoIsV
uTe from the air in few hours
| Utilization OF CERTAIN OFFAL-Prof. A.. ii.
Church. In a paper published in the TRANSACTIONS OF
the Highland Agricultural Society refers To certain
waste refuse matter for the purpose Oh showing the
economical products that may be obtained from
them. According to this, fresh blood contains per
cent potential ammonia, per cent potash, and per
| I1rrh we
rich Blood may be utilized as a manure by mixing
with dry peat OF by coagulation with per cent OF
ouick-lime and then drying. Flesh fish, hair, and
wool are best prepared for by heating with
! steam under pressure Horn, when gently roasted,
! NAV be powdered. Glue refuse is a Shiny matter,
containing in the fresh state 70 per cent nitrogen
| and when dry 3S pey cent. " "Ir0tteI-scutch, re-
| fuse of skin and hair from tanneres, rs cheap
manure, containing in the fresh state 3.5S-ftO per
| cent of potential ammonia c,
| Refuse hops from breweries contain when fresh
19l, and when dry 40 per cent potential ammonia
! They are best added to compost heaps ne depOS-
its from fcrmenting liquors always highly nitro
genous. Sugar boilers scum contains both nitrogen
| and phosphates; the scum from beet-root slTups
! appears the most nitTOgenOus containing when dry
| 4-6 per cent potential ammonia. The liquors OBJ
! tanned by "retting" flax and hemp nitrogonOus.
the solid contents yielding 21-4O per cent potential
ammonia.
TEXTILE INDUSTRY AT THE VIENNA EXPOsiuON.-
In a repor, on this subject by DR.. Grothe, we are
articles, as brushes, mats. watcrproofs, &c, was
exhibited made of the fbers of the so-called "Tucum
palm" cultivated in the southern provinces the
wood of which is also manufactured into household
utensils The bers of the BOraSsus gomati kindred
tree is used for similar purposes by the Malays and
is said to be even better than that of the Tucum.
Manini of Florence exhibited fbers, and spun and
woven articles, indicative of the possible utilization
of the inner bark of the Genistd ncOrid, or Dyers
Broom, which from their quality could oaiy be CON
sdered as an attempt to call attention to this plant
Taussig asks consideration for q vegetable growth
much like waddng, that has become quite common
in the Banat Hungary, since the great foods, and
which sunlight bleaches snow-white. Some were
disposed at first to regard il accumulation OF
vegetable fbers collected and lelted by the
action of water. In the last two wears 1t
has become an article of trade in that region,
and it is used extensively lining for garments
of neasanis 4 material called Pulu was exhibited
| III the Chinese Department, which seemed to sur
pass in every respect KapOk, the vegetable wool OF
the Bombar cetba, DC. of Java, introduced by krat-
Zensten * Co. Of Amsterdam for stutfng beds,
furniture, &c. The Pulu Is a gold-brown hbrouS
material of silky lnster and exceeding softness and
fineness possessing very high degree OF elasticity
substance collected very largely in the Sandwich
Islands from The tree feIp ana GhpoTSd Hef ca .e
lection Of fbers prepared from Ne reeds these haV-
ingbeen isolated so carefully and OF such length as
to make a favorable IMPRESSION specimen OF the
Uellritgchid mjTdbiS Of Benguela was SHOWN III the
| Portuguese Department, IA plant perhaps never he
| fore seen in Europe. and we'll deserving the name
,niTdbuis. Its long leaves are very IIch III tough
| ibers, which could doubtless be utilized
LUMINOUS AND NoN-LUNuNOUs FLAMEs-lt was
shown by Knapp that flames may be rendered non
luminous by addition to the Illuminating Gas of
nitrogen carbouc acid, of air and the effect
ascribed mainly to the dilutiCn of the gas These
! experiments have been extended by Blackmann, by
mixing air. oxygen nitrogen carbOnic acid carbOnic
| oxide and hydrogen, in turn, with the gas, and
noticing the effect upon fame about / inches high
The general results were follows: The introduc-
ton of gas that does not take part in combustion
increases the size of the flame; the ignition takes
place on the exterior only, and there is definite de-
gree of dlutiOn at which combustion On the
addition of oxygen the contrary, an interOrzone
| of combustion manifests itself the flame is short
ened. and finally strikes down. While flame can be
rendered non-luminous by oxygen, the opposite
| effect can be produced by mixing this substance
| with the gas at the instant of combustion
| which may be done externally as well as internally
bv allowing the two TO issue from separate openings
| and not atiOTdng time for uniform mixture a. III
| the Bunsen burner In such filmc II the amount
of oxygen be sufficient for complete combustion, the
| air take no important part, and but small
amount of inert nitrogen can be present To absorb
the heat the increased Illuminating power must Lc
| ascTibed to the increased temperature resulting
| from more concentrated combustion. The removal
of the luminosity by gas that takes no part in
| buston. is due on the contrary to the extremely
| dilute condition which the gas enters into
| bustion and the relatively small amount of COM
bustbe matter that comes IN contact with the OXy
| of however. "A