New-York tribune., 1876-07-15


completely soluble in methylated ether of specific
gravity O.73O al a temperature of G5'. III mcthyi-
ated alcohol $50 above proof, be added to this and
well shaken all the lard, beef mutton, or tallow
fats that may have been mingled with the butter
will be pTccipitated. Care however, Is to be taken
not to mistake the crystallizauOn of butter out OF
the ethereal solution, AZ lower temperature tMan
Coo for the fats preciptated bE the alcohol me
butter, besides being so much lighter occupies tle
upper layer IS different III character ana Is eashy
reyneted by the application OF the warm hand 1oi
minute or two.
APPARITINE ASUBsTTUTE FOR GUM STARCH &c
Gerard has introduced substitute for gum, starch
gelaine &C.. for finishing all kinds of fabrics OF cot
ton WOOL OF silk and also for thickening IN calico
printing which he names appartine. 1t IS sald 10
afford very superior effects, and to impart hitherto
unattainable velvetv surface aud TO render traus-
parent articles as stiff as metallic foil. 1t is pre-
pared by stirring vigorously 16 parts of potato
starch into 7G parts of water, and then adding, with
continued stirring parts of potash or SODA iye ~
%. After a few minutes the lqWd clears ~ ana
forms a gelatlnOus mass, which Is well beaten up,
the quality of the apparine being dependent on tne
amount of beating. 1t simply drlns in the ayr with
out decomposition spelling, aud without acquii-
ing any odOr, and may be formed INTO thin, trans a.
rent colOrless sheets resembling horn, bat more
flexible.
CONDTNsING BEER FOR PRrsERvATION.-A patent
for condensed beer has been taken out by Mr. Lock-
wood The liquid may he taken at any stage OF
fermentation although it is thought best to treat It
when fiji for drinking. Ii is evaporated in vacuum
until large part of the water and alcohol is dis
TILED away, and the beer is reduced to thick
yiscid fund of about the consistency OF molasscs.
The alcohol and water pass Off in vap0r, whc. Is
condensed aud the alcohol subsequently ob.ancd
bv redistillaion is mixed with the condensed beer
either before bOttling or at any time afterward. In
this way beer may be reduced 10 one-eghtn on one
twelfth its original bulk and 1t Is Sad TO Keep iot
auy length of time. To restore the beer TO ITS hTS
consistency il is only necessary 10 add the bulk OF
water distilled of, with small quantity OF Yeast
or other temeut, and n IS hours the beer wll be
ready for bOtlng. If charged with carbOaic acid III
q Siphon bottle receiver, the necessity Of leneW-
ing the fermentation Is obylated.
GLIDING LETTERS AND DESIGNS on GLAss.-Ac-
cordng to M0ser the glass, after being thoroughly
cleaned with powdered chalk, is coated uniformly,
by means of bruSh with a hot solution, formed by
soaking rs grains OF gelatine in quart of water
and then boiling it, The gold leaf is next laid on
very evenly, an operation requiring some practice
After this coating is dry additional layers of gold
leaf are placed it by means of the geatine sou-
ton False leaf may also be used for the purpose.
The less uniform and heavy the leaf the greater the
number of layers required When the gliding ap-
pears perfectly opaque on being held up to the light
and has become quite dry, the letters or designs,
previously traced with the point of needle II de-
sired, are painted, reversed, upon II With black
Japan. If the layer OF g"td Is too thin the N2Insh
NAV be visible through q, a,d mar the effect. When
the vaTnish is thoroughly DIV the excess of gliding
Is softened with wafer and washed OF, N,hie the
designs protected by it remain, and exhibit very
fine luster, if the manipulation has been careful.
Usually the whole glass Is then backed up WIN a
dark oil-coOr, winch renders the letters more dis-
tnct, protects them, and reduces the disturbing
effect of reelection.
FURNACE FOR BURNISG Hay, STRAW, ETC.-1he
necessity for some practical device whereby vege-
table refuse of various kinds such straw, hay dry
leaves, sea weed, &C., may be conveniently utilized
as fuel In those regions where coal is expensive and
timber scarce has long been recognized, and several
attempts to solve the problem have been made. lbe
following is description of one of the most promis-
ing inventions for this purpose. 1t consists OF box
of stove sheet iron in which is heavy press FOL
lower, which by simple mechanism can be moved
up and down and thus arranged to maintain
steady pressure upon the bay, or smila material,
placed In the fire chamber. The supply OF iuri a.
regulated by feeder, and suitable attaciuDclt
adjusts the CRATE relatively to the follower Accord
ing to the quantity of material placed between thtln
The inventor claims that by tins arrangement the
fuel being under pressure, combustion can 60 Oh
only around the sides to which the heat and air nave
access the CONSUMPTION OF fuel is, therel very
slow and can readily be graduated by the draft sup
piled. One hundred pounds OF hay or straw, y Is
claimed will be sufficient to supply the stove during
the cOldes weather and six or seven tons VI" SGiice
for an entire Winter.
CaIoRAI AND PICRoroxINE.-Dr. Christian Brown
has shown that the hydrate of chloral is phySioog-
ically the antagonist of pcrotoxne, when admins
tered to haTes and rabbits and gnea-pgs' and that
life may be saved after fatal dose of pcroto&lne,
by administering the chloral within 10 OF 20 min
utes of the taking of the other substance. THIS an-
tagonsm is subject to two restrictions: first, when
the dose of pcrotOxine is large enough to destroy
life before the chOra has had time to act, and sec
opd when the dose is too great to be combaJed,
excepting by a fatal dose of choral On the other
hand. however picrotoxine is only TO a very limited
degree the antagonist of chlCral merely mitigating
the hypontic effects upon the brain and nervous sys,
TEN. The minimum fatal dose of the hydrate cnofal
for the hare Is II grains Tor each pound pi Ntisn
of the BODY In the cat il has been found that there
is practically no antagOnism between picIOtoxlne,
or strychnine, and choral. PicrOtOXlne ana
hvdrate of chlOral administered together 70 q
eat produced death by stopping the action of the
heart apparently without exciting any destructive
or exhausting influence upon the superior nersOus
centeTs. The energy of the action OF hyordte 9i
choral however in its fatal minimum dose, accord
ing to DR.. Brown, Is IN proportion to The develop
ment of the cerebral hemiSpheres.
IMPORTANCE or PEAT BEDs-In some remarks on
the climatology of Ncw-HSmpshire, Prof. Hunting
ton states that the preservation of the vegetation on
our mountains is of great Importance, not only IN
modifying the distribution of rain, but also in modi-
fying the ex reIne Of cold i'll Winter Our noun
tans especially the higher SUBMITS, are covered 20
considerable depth, except where il has been de-
stroyed by fires by peat, formed chiefly from moss
and Hchens. Now, il has been found by experiment
that peat moss eau absorb more than twice ts own
weight of water; dry clay nearly it's own weight;
dry earth or garden mold more than half its own
weight and dry sand little more than third
of IFS Own weight. With equal times OF CTEhL,
under the same circumstances, therefore, peat
moss loses tWO-tMrds of all the water u
contained; clay and earth more. than three