The Cheyenne daily leader. [volume] (Cheyenne, Wyo.) 1870-1884, 1880-12-29
scIExrsFIc MiscrLLAxy.

A great telescope lens, nearly 20
inches In diameter, is being finished for
the Paris observatory.
The outside fiber Of the ~cocoanut Is
now used for shoe heels, and is said TO
he q good substitute for leather.
Dr. Muller, Of Geneva, has made n
calculation In which no estimates the
number Of plant species existing ON the
globc TO reach a minimum total OF 2J0,-
OOO.
The combined force Of the steam
engines Of the world IS estimated AT &C.
100000 horse power. This is considered
equal TO about twice the available work.
ing power OF the entire human popula-
ton Of the globe.
Herr 1Icrgl, Of Berlin, has brought
out 4 curious device by means OF which
pictures of various kinds are burnt out
on u piece Of ordinary.looking, rose
colored paper. a glowing match is
applied at two n rel, perforated points,
and the sparks communicated then be-
gin gradually to move over the paper,
tracing out the picture. ltneither leaves
its proper path or Injuries the paper he
yond, and when the end Of the path is
reached, the spark goes out.
Not,thc least promising application
of the new luminous paint Is found in
the production Of a safety lamp for
coal miners. II is said TO give light
enough for practical use. and rs II con-
tains no fire or heat, IL is evident that
lis use is absolutely free from risk. by
means OF this form of lamp. in connec-
tion with blasting by compressed air,
fire and the attendant danger OF ex-
ploding gas might he ruled out, and the
most dangerous mines he made quite
safe.
At the Greenwich observatory n very
ingenious instrument Is in use TO re-
cord automatically the duration of sun
shine through the day. II consists of u
glass globe hung within n hcmispherical
hlft ttkAAA AtatAA NV
cup being lined with n strip Of paper
covered with stencil ink. The globe is
entirely exposed upon the roof, and,
while the sun is shining, acts rs n burn
ing glass, and causes n continuous line
50 De made upon the paper. This line
will be broken, however, rs often rs the
suns light 10 obscured 10y clouds, and
thus a record Of the amount OF sunshine
for the day will lie obtained.
VI. Moriic thas shown the French
rraacmya new alimentary substance,
called nutricino. Raw meat, free from
bones a,,l tcndons, is passed into suit
able machines with nitrogeni1ed food
substances-such AS bread, etc.-which
absorb its water, and perhaps form
organic combinations with II. TIE
whole is dried in the air or over a mild
ly'hcated stove. and then pulverized
and sifted. The powder obtained Is
gray or yellowish in color, and has an
agreeable taste. With fats, albumen
or gunmed water, solid cakes or cubes
may be made OF it, TO DO made after
ward into soups, sauces, etc. The sub
stance is very nutritive, and keeps in
definitely If not exposed to moisture or
too great heat.
Messrs. Mittelstrap, of Madgeburg,
have invented anew optical milk test.
In previous instruments OF the kind the
plan has been to add milk 10 water I'M
til n layer Of given thickness becomes
Opaque. but In this new instrument n
given quantity Of milk with n given
quantity Of water is examined by look
ing through different thicknesses OF
layer until opacity is reached. The
vessel holding the liquid has a glass
bottom, and n cover in which Is a verti-
cal graduated slide in tubular form, the
lower end being closed by a piece Of
glass. Light is thrown up from below
by means Of an oblique mirror, or from
n direct source. The tubular slight
through which the examiner looks-is
moved in the owe until the light dis
appears, and mt tins point the fcale Is J