New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1876-01-29
APPLIED SCIENCE.

are pnlyerzed and converted into fertilizers ~ Is
suggested that arrahgonchts DC NAV iU f"',nmf
the bone from the t,db.iShmehts ia NcWIouiold'ti
such prOducts of American fisheries beng estlhaieu
ut 10000 900 pounds per year.
y.RvIsu FOR BIAcK-BoAPDs.-- following is
the recipe. according 10 the patent of Formulas
(which has expired for coating FOX black-hoaros
Alcohol 05 per cent, 10 parts, or alcohol ~ pei
cent, 81 parts; beached shellac, paris "i''-
black, PARIS leyigsed pumice-Stone' I brIe
Parisbue, half part burnt umler' = pa care,
parts. The pigments ana Pnhice-;31onJ1 ,tion he
fully mixed with alcohol, the shellac III souIoh W.
ing added last
THE TPUE JCTE PIANT.-There appears 10 De
considerable confusion as TO the plant from when
the substance 80 extensively used IN the arts under
the name of jute is really derived. On investiga-
hon, however it appears that the crude jute comes
from two species of Corchor's, namely c. cGIpWm1S
and e. OhiOrius grown principally IN Bengal
Plants popularity known as jute. however GROWING
IN the Malras Presidency, the Hibiscus canndDlas
and CrOiGlaia JHod; and Their hDer Is hOV 'ho 'i"
tute though hitherto considered bucn'
NOTIFICATIONS OF CHROME ALTM.-Gernez states,
As the result of experiments that solutions OF
chrome alum, which have been converted INTO inc
green modification by heating to ~ never ClSs
talizes even if supersatwatedJ il care ~ taken tha'
not q trace of violet chrome alum or OF any o'hef
alum is present and also that they retain their green
color and il is never assumed nv solutions prepared
cold. I'pOn slow evaporation green transparency
mass is left which gradually fills with craze ~ u,
boWever n fragment of crystazed chrome alum, or
other alum is introduced into the ABOVE Soiut9'',
crvstalizatiOn instantly begins, and gradually violet
chrome alum crystaiizes out
CosIN, A NEw FLUORFsCENT DYE STUFF.-A new
dye stuff has been introduced into the market under
the name of cosiD, by a German company. IL is
characterized, in solution or upon silk. by oeanu-
full huorescence, combining in most decided man
ner beautiful rose and reddsh-brown tints IL con
sists Of glsening greensh scales readily soluble in
wafer an Of alkaline compound OF yellow dye stun
preciptabe by acids Ii seems Ieiaied 10 tng hasH
rian phthalic acid dye StutfS MeiStrr, OF hufich
EMPLOYS it instead of litmus in the rapid tlratl9n
Of alkaics since the disappearance 81 lis hoau,iu
rose-colOr upon Modification, Is mnch more ihalhou
and sudden than the change OF the blue OF htn'us'
CONVERSION OF ARTERIAL INTO VENOUs BLOOD !
A method has been proposed by schGtzenoeIger !
for exhibiting the conversion of arteuai into VenOs
blood by the deOxidatiOn of the former by means |
of the absorptive power of yeast for oxygen. mus
If blood inclosed in a thin membrane, be immersed
Ia water mixed with yeast, and the whole exposed
10 temperature of SO, it will become vonous III
the course Of az hour BY shaking it with air 1t viii
reab,0Tb oxygen, and be TecOnycrcd Iulo aIttlial
blood. IN apparatus has been perfected upon INC |
above priucile from which red areTal blood passed
into IL flows ont as black venOus blood and IS then |
again saturated with oxygen, aud passed DacA mo |
tie apparatus.
XYIINpEIN A NEW DYE-STUFF. - The name !
xynden has been given to green dye-stuh, !
examined by Forlos and ROmHicr, which results |
as a pathological effect of Ie:ita aeWGnoSa IN |
dyeing wood of the beech, oak, and birch, often to
such on extent IS TO impart dark hiue-green ap- |
pearance TO large blocks This coloring matter has
been extracted from the grecn-colOred wood, Icy !
Liebcrnann, with carb0hc acid. and has been pre-
rpitated from the dark green solution IN dark green
Fakes, 10y the 8ddltiOnof alcohol or ether Ty re- |
rrystailatiou front the solution in carhoic acId Z
was obtained in small fouf-sded crystals, OF a hlgh
tOppery Mstcr. These sOuble In most solvents,
except in concentrated snlphmlc aCld with gL3sa-
green color and ~ carboEc acld ana ANIME WIN q
beautiful daTk-gTecn color. No formula Can as YET
b. given for 1t.
NEW PROCESS FOR THE PgTs .RvAT1ON OF WooD.
"A new process for preserving wood from fire and
decay has been invented by Messrs. WeatheIby and
Moore. II consists first in ki!n-drying the wood,
which deprives il of all moisture and much Of its vol
htile turpcntiue and other Iflmmable matters II
Is then put into suitable cylinders, in which lime and
water with sulphurous acid gas, are forced Into the
pores of the wood under considerable pressure The
wood is removed, dried and is then ready for nse.
The chemistry Of the process consists in the forma
lion of soluble sulphate Of lime by means Of the
tluhuTOus acid and the line; THIS crystal'lzes rs
bis;Ilpitc. which ONidiLcs and is converted INTO .e
sulphate of lime or gypsum. As TINS Is an exceed
lngy i1sOluble salt. II is not easily removed nom
The pores OF the wood, and not only by IFS presence
protects II a. uOuCuAu0CtOf OF neat, utt utVAI-
Lzcs all matters which are likely 10 prove obJcctoh-
able rs fcTments.
SUBMERGED CHAIN FOR Tow1Nd BOATs. 49, The
remarkable success attending tho novel system o.
river navigation introduced for nearly the whole
length of the Ebe River OF towing boats by the aid
of chain submerged in the channel has led 10 its
introduction upon the tributaries of that river The
data furnished by its operation for several years
warrant the conclusion that this mode Of interior
navigation possesses great economical advantages,
not only especially compared with railroads but
also as compared with other modes of towing. BY
the former methods of towing, the necessity for the
reduction of the resistance 10 a minimum led to the
building of boats Of large size, REGARDLESS of the dis
advantages connected with them, such as the
greater difficulty of obtaining fnll freight from
point to point uncertainty Of running at all stages
of water G. But besides the reduction OF the size
of boats allowed by The new system, II Is also prob
able that il will be found applicable IN whore
the current has been found too strong 10 render
navigation practicable by tue old method, since
boat towing by means Of a firmly anchored chain
passing Ovcr it is much more nearly independent OF
The current.
THEORIES OF MAGNETISM AND LIGHT.-Boltzmann
has cxperimentaly confirmed the theory that light
and electricity are only different forms of motion Of
one and thc same medium, By showing That from it
there should result a certain relation between the
reflective power Of substance and its dielectrc
properties a relation confirmed by observation. A
further confirmation Of the same theory has also
been lately published by Botzmann, based In
vestigations into the behavior OF nOn-cOnductng
bodies under the influence of electric forces. He
Jaws that according to Maxwells theory, the
slant Of di-electriclty for non-isotropc crysaized
bodies must depend upon the direction in which