The Colfax chronicle. [volume] (Colfax, Grant Parish, La.) 1877-1981, 1889-11-23

SCIENCE AND iNouSIHy'
"A new marble saw cuts two and
half inches q minute.
In Norway they build all WINTER
asing unslaked lime. and the work 10
superior to summer construction.
"A New England inventor, says the
Iroumonger. has perfected q machine
that Is warranted to make 1900 nails
minute, or three tons per day.
1t is fact that sculptors and
painters find the old daguerreotype
better to work from than the photo
graph, for the discarded daguerreotype
registered far better the true modelling
Of the face.
Brick thing on fat roofs can not
be made tight with cement The tiles
will absorb water; the cement will also
open little by the sudden shrinkage
from the heat of the sun to the tenn
perature OF falling rain.
ALI the horse skins used come from
Russia- The leather is clear and
beautiful white and makes the finest
mems gloves. The Russians have .
peculiar breed Of horses and very fine
| leather IL made from their hides.
The first so-called lead pencils
were made in the United, States In
1880. 1t Is estimated that the con-
sumption in this country is $50, 900 q
day; that, at an average cost of Eve
cents each. amounts to s., 900. 900 paid
for pencils a year.
AT the Greenwich observatory
| 1.O68 hours Of sunshine were recorded
in 1888, about $50 less than the aver
age Of the preceding eleven years. and
1888 below that OF 1887. The aggregate
number of hours the sun was above
the horizon was 4. 465.
French scientists support the
theory that vegetable forms which now
cover our continents have spread
slowly and continuously from north to
south, recent species forcing back or
celebrating those of more ancient
origin.
According to French astrono-
mer. the cooling Of the terrestrial
crust apparently goes on more rapidly
under the sea than with land sur
face. From this he argues that the
crust must thicken under oceans at q
much more rapid rate, 80 as 10 give
rise to swelling up and distortion Of
the thinner portions Of the crust thai
is forming mountain chains.
| The new sugar produced from
coal, called saccharine. has been con
demned by Paris doctors, because il
seriously impairs digestion. They
recommend that its use as an article o.
diet be forbidden by law, and an or
dinance to that effect is said to have
been enacted. The good old cane su
gar seems likely to retain its place fol
q while yet, in spite Of new inventions
and arti6cially high prices.
During inactivity a person will or
dinarily breathe about 480 cubic inches
of air q minute, but while walking q
the rate of six miles an honr he vii
breathe 8, 200 cubic inches. Singing il
an exercise which increases the acton
of the lungs, perhaps even more thar
walking, and vocal music Is gympas
tic exercise which increases the expan
sion of the lungs and the development
of the lung tissue. Those nations which
are given to the culture of vocal musi
are strong. vigorous races with expan
sive chests.
"A French electrician has submit
ted proposal to the municipality Q
} Paris with q view to supplying tn
electric light in novel manner, whic1
would tend to conciliate interests
which at present enter into the ques
tion-namely, by obviating the neces
sity for laying down conducting wires
The originator Of the idea has, 1t ar
pears, invented . miniature gas motor
which he proposes to fix in the lam
standard. and above or below, the sam
, a. . dynamo would be placed. to actr
ate an arc lamp on the top Of the col
umu.