St. Landry democrat., 1892-01-30
POPULAR SCIENCE.

Salmon, pike and goldfish are the only
fish that never sleep.
A man can live and enjoy perfect
health on milk and its products alone.
The fall of rain in the mountains of
! Southern California has greatly increased
since the formation Of Salton Lake.
It is only few years since the nour.
ishing qualities of milk and its hygienic
value began to be properly appreciated.
The indispensable use Of gutta- percha
is for tue protection of submarine tele-
graphs, for which all other substances
have proved more or less failures.
G. w. Dunn, the California natural
ist, has collected over 70, 900 insects be-
longing to the hornwinged family, 5000
| of the cricket tribe aud about 1000 but
terdies, and numberless rare plants and
animals.
A French anatomist has examined the
skeletons of eighty-six chimpanzees,
gorlllas and ng-0utangs, and asserts
that he has found in them bone diseases
llhC LLlDSC " lIiCIl dIiIiCb iIiIlhlLId tLLtl
about the same proportion.
A new artificial honey, called cougar
honey" bids fair to become formida-
BILE rival OF the natural product. 1t con-
sists OF sugar, small proportion of
mineral salts, water, and free acid. In
taste and smell it very closely resembles
the genuine honey.
Professor Munsey says that good
churn will make at least ten per cent.
more butter than is called for by the
butter fat found in the milk, and if all
the butter fat got into the butter it
would ovcrrun the amount called for
nearly eighteen per cent.
The germs OF yellow fever, it is
thought, may be conveyed from tropical
countries by the pet birds exported in SO
large numbers. Recent cases of the dis
ease in Marseilles, France, could be
traced to no other cause than pair of
parrots from the Australasian Islands.
Corn husks boiled in caustc soda are
being utilized for the manufacture OF
paper. The cooking process results in
the formation of a spongy, glutlnous
paste, which is subjected to heavy pres
sure so as to eliminate the gluten, the
fiber remaining being made into paper in
the ordinary way.
In using the heavier grades of kero-
sene or refined petroleum. OILS in lamps,
the wick often becomes charred at the
top, which obstructs the capillary action
of the wick When the wick is raised,
the charred top obstructs the slot in the
flame guard and diminishes the flame.
Wicks should be often renewed. The
old wicks become hard and partially OBJ
structed in the tube.
An ingenious camera for photograph
ing the internal organs Of men or ami
mails has been invented in Germany. 1t
is cylindrical in shape, is contained in q
rubber tube, and has two hemispherical
shutters and two minute incanlescent
lamps. Pressing pneumatic ball moves
the camera forward in the tube, opens
the shutters, and makes the electric light
contact. Removing the pressure closes
the shutters, puts cut the lights, and re-
places the camera.
Experiments made in America with
the cottonwood show that the increase
in the girth OF the tree is IL lIc only dur
ing week or two about midsummer. It
is believed to be the rule with most
American fast growing deciduous trees.
Experiments on coniferous trees, recently
made in scotland by David Christison,
show opp osjte results. There is a le-
tardation of growth at midsummer, and
u rather rapid increase just before and
Just after that time.