New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1874-01-24
APPLIED SCIENCE.

ferresi with good reason that any substance con-
canning starch il unfit for food for very young
Spfanta n their ph theological condition is probably
similar TO that of the young of earniyorous animals
generally.
PpurIANCy OF Gas PROM THE DIsTILLATION OF
sHE PINE.-According TO Prof Benevdes of Lisbon,
gas obtained by distllation from the pine tree Is
much luminous than that from coal, the differ
eDee, according 80 careful comparison, being as hVe
20 one. The density is about twice as great 1t Is
rich IN carbon and requires special burners, WIN
very small apertures to burn without smoke or
offensive smell; in this respect resembling petro-
leum.
SIMPLEST STEAM-M oTOR.-The solution OF the
problem how 10 utilize the expansive force OF steam
IN the simplest manner so as to produce contmu-
cus rotary motion, rs furnished by an invention OF
Prof Sienens a. lately published in Dinglers Poly
t,oAsio Journal and warmly recommended for the
propulsion Of sewing machines and other forms OF
The lesser industries. The motion OF the machine
commences directly with the action Of the steam,
and the steam generator itself rotates.
EyFrcr or FEEDING ON THE Color or COCoONs.
The All of silk culture is likely 10 he materially
advanced by the discovery of Tailhs If it be tTuel
that when the worms are fed on vine leaves the
eocOons are Of magnificent red and If lettuce he
used. they become an emerald green Another OK
perImeDteI has obtained silk OF beautlIulNciIo"
hDe green and then again violet by feeGlhg WIN
lettuce white nettle. Ialllls remarks, however
that the worms must he fed on mulberry leaves
when young. following with other leaves duTlne Jhe
last twenty days Of the larval stage OF me-
CONVERTING WOOD INTO Stock FOR PAPER
For the purpose of rendering wood aud other hbrons
Substances suitable for pulp to be used IN the manu-
faeture of paper Keegan digests the substances in
esustic soda under high pressure. Pieces of wood
half an inch thick and from six to twelve inches
long are placed in cylinder of iron, which is filled
eoda ~ subjected
pressure Of pounds the square inch for halt an
hour. The wood Is then heated by means on steam
80 about 500 +. The products resulting from the
action of the caustc soda the resin OF the wood
are soluble. and may be washed ont by soaking the
wood ~ water 1t may then he transferred 10 the
pulp machine. The soda may he nsed again, as put
little resin, &c, is dissolved out.
SuIPnIDE OF CARBON FoR PHYILoXERA.-AmO
other remedies lately suggested for the destruction
of the terrible PhyloXera or grapevine louise, is
that of NJ. Monesteux. in the application of sniphlde
of carbon Two OF three holes are to be made by
means of iron bar at the root of the vine, and one
or two ounces of the liquid placed in EACH the holes
being then filed from above with earth. The Odor
of the suphide penetrates 10 the roots and affects
the plant above, and according to the writer brings
bout the destruction of every insect IN the course Oh
a week or ten DAYS, without injury 10 the vine. The
remedy needs to be- tested by long continued trial,
a. the insect is one that II Is extremely dmcut To
extermInate 10y any treatment
FILTER FOR REMOVING ORGANIC IMPURITIES FROM
WATHR-A very efficient and seryiceable arrange
roent for removing organic and other impurities
from drinking water is that devised by Prof. Il.
BlschOf OF Glasgow, which consists essentially IN
ltering the water through spOngy iron and pounded
limestone The iron is placed in the upper chamber
of an eathenware filter, and powdered limestone is
arranged in a separate layer below. The iron is pro-
cured in powdery, spOngy state by the reduction OF
al without fusion after the extraction 81 sui
phur and copper by heat. 1t removes all albnA
inold and nitrogenized compounds and also all
bad communications from the water; and trace OF
iron taken up 10y the water is separated by It's snD
seguent passage through the limestone IL is stated
that one charge of the material costing one shilling,
il sufficient for the fteriDg Of ten gallons per day
tOr period Of 3U days.
UTILIZING WASTE ORGANIC MArERiAi~-Wlthn
the past few years there has grown up new indus
try based upon the saving Of blood and other otl
of the slaughter houses and the "tankings" Tor bot
toms Of the tankB) in which grease is rendered All
THE material has heretofore been either wasted, or
the attempts to utilize it have been crude and in
.feetual as to make the business not worth pur-
suiDg. At the present time, about New-York. Chi
esgo Cincinnati. and Baltimore large amount OF
capital is employed with machinery and skilled
labor by which many thousands OF tons of dry lnodo
TOus heterogeneous matter are prepared ana put IN the
market This Is sold readily AT wholesale, at about
n ,ontsns 10 per cent sells a. SS7 so per ton. 1t is
bought bv makers of fertilizers 20 furnish the proper
proportion Of ammonia III their compounds and
preference is said 10 be gwen 70 1t over the Peruvian
gUanO which.was formerly used Tor that purpose
In tins the buyer pays for only the actual am
monla contained IN the dried material, WINE the
priee for Peruvian guanO is uniform, though the
quality Is variable.
The SEAL AND HERRING FISHERIES oP NEW
FouNDIANp-A valuable tract has lately been pub
Ished by Michael Carroll of Bonayista- Newfound-
land, upon the seal and herring fisheries OF that
island which contains what appears to be q very
thorough and trustworthy account of the subject
In regard to the herring. this writer remarks that
~ soon as the ice moves off the shore in the different
northern bays. in the Spring, herring strike in TO
spawn, and that they visit the same harbor cove
or creek each season, and very nearly on the same
day. If not prevented by ice, when the spawning
time arrives the herring will swarm to the beach,
always selecting a sandy one for suOh purpose and
can be taken, in any desired number. with the
simplest form of nets. The fish taken IN the Spring
around the island, are generally very poor ana OF
uniform size. Those taken N gll-nets sre superior
IN quality TO those caught III the selnes and Will
keep much longer without salt. This rs due
ssnecially to the fact thatthe coating Of scales
pnbroken M gill nets. whAe with the seine these
are generally scraped off. Fish taken from the
seine and sated are often Of little value after four
bOuTs while those taken from nets will bear delay
OF eight hours without injury. Exposure 10 the
atmosphere if also said TO be injurious particularly
with a southwest wind
FEEDING ANIMALS WITH FLESH FooD.-Petten
hotter and Volt have lately investigated the effect of
feeding animals with flesh food, the experiment
soing tried upon dog provided with various
known quantities of flesh and fed for a certain pc
mod and, during each Diet placed for one or more
days in the respiration apparatus, everything taken
ia and run of being noted. 1t was found that fat,
weIl-fed body will oxidize more fas than lean
one, and that, as the body becomes f&tter, rather