Perrysburg journal. (Perrysburg, Wood Co., O. [Ohio]) 186?-1965, 1893-05-27
SCIENCE AND INDUSTRY.
"A crab when living near the ocea,

| "A crab when living near the oceans
surface has well developed eyes. In
deeper water only eyestallSs are pres
ent-no eyes, while in specimens from
still deeper water the eyestallss 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 $3.50, com
pared with $3.50 in Great Britain, S125
in France, 500 in Holland, 500 in Ger
| many, $50 in Russia, $50 in Italy, and
$50 in India.
The making of tannin extract from
hemlocli bark has become quite an in
dustry in western Washington. The
/ variety used, known as white hemloclS,
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 S500,000,
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-
| tics there are 131, 1913 miners employed
at the coal mines of France, of which
93,96s work underground and $3.50
| above ground. OF those working under
! ground 5,33l are children less than 16
years old; of those working above
| ground, 3,9S6 are women and 1880
children.
| "A new work by r. w. Wilson states
that by irrigation 25,OO0,00O acres are
made fruitful in India alone. In Egypt
there are about 5000, 900 acres. and in
Europe about 5.000,0OO. The United
States has but just begun the work of
, improving its waste area. but has al
| ready about 100000 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 n
, thousand years, and in America but
three undred.-Baltimore journal of
! Commerce.
The value of silver ore shipped from
Creede, Col. in February is estimated
to have been sS5O.OOO, 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
of the metal in the mines. where the
cost ranges between Is and 30 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
I workmen unearthed curious rock forma-
tions, which go to prove the assertions
of geologistS that many years ago that
part of Georgia was n 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, oi 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
the Milky Way probably contains 2O,-
0OO,000 suns; but Prof. Barnard esti-
mates that the camera will record the
presence of at least 500. .OO0, O00 with the
! certainty that there must be n 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 T21, sos, of
whom 5000 were females, working
above ground. There were S62 acci-
dents during the year, occasioning
1,O34 deaths, one death for every 679
persons employed, as against one for
every 66S in the preceding year. The
total amount of mineral wrought was
| 191, 1854, ,00S tons, of which 1S1, 1865 ,S71
tons was coal. There was a decrease
in total production of 5.73S,6S4 tons
compared with 1891. When protectory
laws was first passed, there was one
death for every 233 persons employed.
Astronomers are delighted with the
results of the observations made on the
sun during the total eclipse. The OBJ
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 the
activity of the sun itself. The unusually
large corona observed on Sunday is
taken as evidence of the remarkable
activity of the solar fires The prac-
tical application of these discoveries is
not vet clear, but it is expected that
eventually they will be of use in fore
casting the character of the season.
"PAPA" BY TELEPHONE.