Mower County transcript. [volume] (Lansing, Minn.) 1868-1915, 1873-03-27
Applied Science.

dlrect public attention to the iniqui-
tous Nile slave trade"
Applied Science.
ACTION OF APPLE JUICE IN FIXING
CoLoRs.-A cotton-dycr and printer in
Manchester claims. TO .have made the
discovery that apple Juice has the val
liable property Of perfectly fixing the
colors of printed cotton fabrics.
MATERIAL FOR MouLD1Na.-
ing to Mr.. c. Muratori, of London. a
compound of alum, glue, and sawdust
offers convenient material for orna-
menting furniture or other woodwork.
It is easily nodded, and by drying be-
comes SO hard that it readily takes high
polish.
VARN1sH FOR BASKET WARE.-Tho
following varnish for basket work is
said to dry rapidly, to possess sufficient
elasticity, aud TO be applicable with Oh
without admixture of color: Heat 375
grams OF good linseed oil on sand
oath until 1t becomes stringy, and drop
placed upon cold, inclined surface
does not run; then add gradually $500
grains of copal oil varnlsh or af1v 9th
er oil varnish. As considerable etfer-
rescence takes place, large vessel is
necessary. The desired consistency is
given to it, when cold, by addition of
oil OF turpentine.
WATERPROOF PAsrEBoARD.-Oneo of
the cheapest and most effectual cover.
lngs to render wood perfectly water.
proof, and increase its durability, and
which will impart to pasteboard the
appearance and strength of wood, il
that employed in many ways by the
Chinese. according to tests made with
sample sent from Perkin by DIR.
Scherzcr. 1t may DC prepared. as n
slightly viscid fluid fit for Immediate
use by stirring into three parts of fresh
serum of blood Tor defibrinatod BLOODY
four parts Of dry slaked lime and some
alum. It should be laid on twice, or
at most three times, in order to render
articles perfectly waterproof. 3
DESTRUCTION OF MAY BUGS ON Il
LARGE SoALE.-In the Royal forests Of
Bischofsroda successful experiment
has lately been made in destroying
May bugs on large scale. The m0clus
operondi was suggested by the obser.
Walton that these bugs always select
warm and loose ground for the deposi-
ton of their eggs. Consequently, II
artificial breeding-places were prepar-
ed by covering fresh cow-dung with
fine earth aud by the middle of July
these were found full of eggs or grubs,
of one quarter inch in length on the
sides most exposed to the sun. After
carefully collecting these eggs,
&C., they were burnt outside the forest1
REMOVAL OF Oily MATTER FROM
Wool, ETC., By HYDRo-cARboN VAPoR.
According to Simonin and Coffin, by
passing vapor of any of the light n.y.
dro-carbuns produced in the rectifica-
ton of petroleum Gas naphtha, &C., J
through twool, horse hair, feathers,
&C., placed on suitable open frames, 1t
will take up the oily matter and retain
it in solution after condensation. BY
distilliDg this solution and either pass
ing the vapor through fresh portions of
wool &C., or condensing It, the oily
matter is left as a residue, which can
be purified and utilized. Treatment
with vapor is more effective than with
liquid Hydrocarbons, since it comes
into more intimate contact with sub.
stance to be purified.
METHOD OF GLIDING GLASS. -The fol.
lowing simplifcation of Wernicke's
process for gliding glass has been sug-
gested by Prof. Bottger, as exceedingly
rapid, beside being economical, and
adapted to ordinary temperatures.
Dissolve the chloride of gold, obtain.
ed by solution of / gram of pure gold
in aquaregia, as nearly neutral as pos
sible, in 1875 cubic centimeters pure
water, and 6 grams caustic soda in 100
cubic ccntimeters water. Prepare, as
needed, reducing solution of 2 grams
glucose, a. cubic centimeters water "a
cubic centimeters commercial aldehyde
Tsp. gravity, 87O.) To cover the interi.
or OF tumbler, for example, with a
brilliant film Of gold, put into a separ-
ate glass 4 volumes of gold solution,
add volume of soda solution, and
then 1-16 volume of reducing solution,
and pour quickly into the tumbler to
be lgllded enough of the mixture to
half fill it. Keep it in motion for sew.
eral minutes, so that every part may be
continually moistened.
0n0NAOE, NE" DIE-6TUFF.-A sec.
ondary product OF the manufacture OF
fuchine, employed for some time in
dyeing WOODEN goods, under the name
OF cerise, aniline, orseille, &c., has OF
late contained impurities in the form
OF 1nsoluble foreign substances which
has suggested the effort to render it
sufficiently pure to warrant its use with
the finer fabrics. A dye stuff named
grenade. has been produced at the fac
tory OF Knosp, in Stuttgart, which is
said to give pure granet. brown, free
from the dirty bluish-red tint of cerise
and other substances substituted foa
archil, and which by combination with
picric acid, t.1rmeric, &C., can be made
to give any shade of brown. The bril-
liancy of the color surpassed that of
genuine archil. It is applicable to
WOODEN, cotton, silk, leather, and wood
en- articles, by use of different NOR
dants, and is practically cheaper than
cerise, by reason of low first cost.
and absence of insoluble residue. DR..
kelmaan predicts for it permanent
place among dye-stuffs.