The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1893-06-15
SCIENCE AND INDUSTRY.


"A crab when living near the oceans
surface has well developed eyes. In
deeper water only eyestalks are pres
ent-no eyes, while in specimens from
still deeper water the eyestallls have
joined, forming pointed beak.
The British Royal Commission on
Labor says in recent report that the
annual rate of remuneration for farm
labor in the United States is s2S2, COM
pared with $3.50 in Great Britain, 1925
in France, 500 in Holland, 800 in Ger
many, $50 in Russia, $50 in Italy, and
$50 in India.
The making of tannin extract from
hemlock bark has become quite an in
dustry in western Washington. The
variety used, known as white hemlock,
yields very superior light extract,
which gives leather color that can
hardly be distinguished from oak tan.
Paris has practically decided that
the big thing with which she will
amuse the world at the exhibition of
1900 will be the greatest of all tele-
scopes. 1t will cost at least 100000,
and it is expected to bring the moon
near enough to see objects no larger
than the towers of the Brooklyn bridge.
According to recently issued statis-
ties there are 131, 1928 miners employed
at the coal mines of France, of which
93,962 work underground and $3.50
above ground. Of those working under
ground 1881 are children less than IS
years old; of those working above
ground, 1886 are women and 4,820
children.
A new work by R. w. Wilson states
that by irrigation 25,OO0,OOO acres are
| made fruitful in India alone. In Egypt
| there are about 5000, 900 acres, and in
Europe about 5000, 600. The United
States has but just begun the work of
improving its waste area, but has al
ready about 1000, 900 acres of irrigated
| lands.
The life of trees is determined very
largely by climate. Actual experiment
| has shown that the English oak, for in
| stance, natures and consequently dies
sooner in the United States than in En-
gland The life of one of these trees
| across the water is estimated to be a
thousand years, and in America but
| three hundred-Baltimore Journal of
| Commerce.
The value of silver ore shipped from
Creede, Col. in February is estimated
to have been sS50,OO0, The silver out
| put of Colorado was increased last year
| by 5000, 900 ounces. The low price of
silver has no effect upon the production
| ~ he n1 ~, 41,n ha
cost ranges between Is and 40 cents an
ounce. The output this year will prob
ably be very much larger than in 1892.
| While digging sewer bitches in Al
bany, Ga recently, it is reported that
workmen unearthed curious rock forma-
tions, which go to prove the assertions
of geologists that many years ago that
part of Georgia was a part of the sea,
and was built up by gradual deposits
of sediment from rivers and other
sources" The rocks found are said to
be limestone, and contain fossil sea
shells and impressions of shells.
During the last few years Prof. Bar
nard, o. the Lick observatory, has been
engaged in photographing in detail the
Milky Way When the plates are fin
| ished, which will not be for three
years, it is expected that the facts re-
vealed by them will revolutionize the
old conceptions of this remarkable phe-
nomenon. The textbooks declare that
the Milky Way probably contains 90
O0O,0 900 suns; but Prof. Barnard esti-
mates that the camera will record the
presence of at least 500, 900, 900, with the
certainty that there must be a still
larger number which are not visible
n. Y. Tribune.
I'm 1892 the total number of persons
employed in and about all the mines
in the United Kingdom was 721, sos, Of
whom 6,O99 were females, working
above ground. There were S62 acci
dents during the year, occasioning
1,O34 deaths, one death for every 81!
persons employed, as against one fol
every 66S in the preceding year. The
total amount of mineral wrought wa:
191, ,054, ,9OS tons, of which 1S1, 1861 81
tons was coal. There was decrease
in total production of 5,75S,6S4 ton!
compared with 1891. When protectory
laws was first passed, there was on,
death for every 233 persons employed
Astronomers are delighted with the
results of the observations made on tn,
sun during the total eclipse. The oh
servations made at the Harvard station
in Chile are thought to establish con
clusively the theory that the dimen
sions of the corona depend on tn,
activity of the sun itself The UNUSUAL,
large corona observed on Sunday i
taken as evidence of The remarkabl
activity of the solar fires. The prac
tical application of these discoveries i
not yet clear, but it is expected tha
eventually they will be of use in fore
casting the character of the season.
Tips on Ocean Steamers.