The Redwood gazette. [volume] (Redwood Falls, Minn.) 1873-1940, 1875-05-06
ME- CHANICAL AND SCIENTIFIC.

An emulsion of raw meat is advised
as a nutritious form of diet for conva-
lescents. Eight ounces of raw meat,
with two and half ounces each of sweet
and bitter almonds and white sugar, arc
beaten together in mortar until COM
pletely Homogeneous, the almonds hav-
ing first been Dlanched. The compound
may be beaten up with eggs or milk and
water in any consistency.
The real possibility and advantage
of the varied and extending uae of paper
pulp is illustrated in the manufacture Of
such things as water pals, which are
now made in large numbers of paper
pulp, as well as OF wooden slaves. In
the old way of making pals the sepa-
rate parts or slaves are cut, one at a time,
from the log of wood, and, in making
them, all the chips aud smaller pieces are
wholly wasted, so far as the real object
OF manufacture is concerned. In max
ing a paper pail, however, the tibrous
material is wholly utilized, and if the
original stock is wood, as in part it may
be, then that which would be wasted in
chips and in fag ends is entirely saved
Those who make paper tell us that thus
far they have barely entered on some of
| their new lines of product. for
Nay.
Mechanical impurities in water are
removed only by filtration; chemical i'm
purities cannot be removed in this man
ner. If lime is supposed to be present in
water, the best test is to mix with it n
small quantity of oxalic acid in small
vessel; lime, if present, will be revealed
in q white precipitate. Carbonate of
copper is best detected by the white
tincture of gals, which produces black
precipitate. If the penknife, dipped in
| water, assumes a yellowish coating,
copper is present. The best method Of
detecting the presence of vegetable AMI
animal matter is by dropping into it
small quantity Of sulphuric acid; the
water becomes black. To purify water,
add twenty drops of sulphuric acid to a
gallon of water. An ounce of powdered
alum in hogshead of putrid water will,
in the course of few hours, precipilate
the deleterious matter and make it tit for
use.-Scientifc american.
The following is a novel device re
Gently invented for transmitting power:
Upon the ceiling Or in some convenient
place are hung two cast-iron discs, or
hemispheres, securely clamped together
Between the two is an elastic diaphragm
having a piston secured to the center.
The piston passes through hole in the
lower disc and is geared to crank or
short piece of shafting. From each disc
extends a common rubber tube. These
are united at any convenient distance
with small, air-tight cylinder with
piston. On applying power the dia-
phragm is driven rapidly up and down
and the air above and below it is alter
nately compressed and rarified. This
impulse passes, with little loss by fric-
ton, through the pipes, and the piston
in the cylinder Is alternately sucked up
and driven down. As there are two pipes
the movement is reciprocal, and the
power, and at speed corresponding
with the movement of the diaphragm.
There is no exhaust, no discharge, and
no new supply of air. Even leak does
no HARM except to waste the power, and
the cylinder will work in whatever posi-
ton it is placed, so long as the pipes are
clear. This device has been used in cut
ting cloth in q wholesale clsthiDg; house,
and it is said to work satisfactorily
"The Worlds Work." Scribner for May.
Five per cent. of the female popula-
ton of Belgium is engaged in lace making,
little girls being apprenticed to the art at
as early an age Is five, and often earning
their own living thereby. About $40 an
inch is paid for real Valenciennes, though
the artist working twelve hours day can
produce but one-third of an inch in week.
The best Brussels thread is spun in under
ground cells, because dry air causes the
thread to snap, and the worker has but
single ray of light to guide his hand.
Many operators lose their.sight and grow
consumptive in the noisome work shops.
In reading of the patient labors of the
poor, l-paid operators one recalls Hoods
lines of the seamstress:
Sewing at once with a single thread
shrOud as well as q shirt.
The Baltimore american publishes the
views of the several cotton manufacturers
of that State as to the prospects of bust
ness in their various branches in that Sec
ton of the country. As rule they are
gloomy, complaining that the past year
had yielded no profit of their mills, while
the outlook is not much much more hope
full for the near future, or, at least, until the
stock of high-priced cotton now on hand
shall be worked off This state of affairs
is attributed not only to the decline in raw
material since their stocks were laid in,
but also to the operations of the laws regu