Perrysburg journal. (Perrysburg, Wood Co., O. [Ohio]) 186?-1965, 1892-05-14
SCIENCE AND INDUSTRY.

From the Gambia there are 20, 900
tons of ground nuts annually exported,
mostly to Marseilles, where thc oil is
extracted. Rice, cotton, maize and
grain known as Kous are also largely
grown in Gambia, and the rubber tree
is now being extensively cultivated.
Queensland exported 32,629, 900
pounds of wool in 1891, being 13,43O,0OO
pounds more than in 1890. This colony
also exported 5,340 ions of frozen meat
in 1901, u gain of 2,31s tons over 1890.
There were also shipments of 1,13O tons
of preserved meats.
The minimum age Of employment
on the continent is generally 12, or from
IL to Ia. But then English children
only work rs hours per week, while in
France and Germany the hours are 80,
in Italy and Hungary 4s, in Holland 66
and in Belgium 72.
"A colonial butter factory at Berry,
N. S. W., received s4 ,457 gallons of milk
in one month, yielding 81, 1853 pounds of
butter, which sold for eighteen cents
per pound. Farmers were paid five and
one-half cents per gallon of milk, and
it required twenty-six pounds of milk
to make one OF butter.
Ostrich farming is one of the i'm
portant industries in South Africa,
which, as yet, furnishes the bulk of the
ostrich plumes for the markets of
the world. There are probably two
hundred thousand domesticated os-
triches in Cape Colony. Each bird is
supposed to net his owner forty dollars
per annum.
The largest band-sawing machine
in the world has recently been com
pleted in England and sent to Tasmania
The machine can saw through maxi
mum depth of seventy-five inches and
| the carriage will accommodate logs fif-
| ty feet long and weighing about fifty
| tons. 1t is asserted that this saw cuts
even faster than a circular saw, while
wasting IS per cent. less wood.
"A good illustration of the amount of
change brought about by deep-sea in
vestigations in our ideas of the distribu-
ton of the fishes is to be seen in the
recent history of the discoboli. 1t is
now shown that the discoboles, disk
sea snails, as they are variously called,
are nSHonger restricted to the Atlantic
and Pacific in their northern parts and
to the Arctic ocean.
The imperial eagle, the largest OF
species known, flies to a height from
10000 feet to $1,000 feet. 1t is native
of South America and it's habitat is
among the lofty mountains Of that
country. Its power of flying to high
attitudes is only exceeded by the condor
of the Andes, which is said to have at
tanned the height of six miles, or within
one mile of the greatest height ever
attained by balloon.
The following method of making
paper transparent for copying drawings
is adopted by the Austrian photographic
bureau. The sheet of paper being
placed over the drawing to be copied, il
is lightly rubbed with ball of cotton
saturated with pure benzine. The
tracing can then be readily made, owing
to the transparency produced, and the
benzine, on evaporating, leaves the
paper opaque as before, and perfectly
odorless To secure satisfactory results
however, absolutely pure benzine mus
be used.
--Anthropologists all over the world
are said to be aroused by the PROPOSE
tion of Prof. Putnam, of Harvard, t.
gather at the worlds fair in Chicago
living representatives of every race O
aborigines to be found on the American
4 continent, in their own houses and cos
tunes. Should the proposal be carried
out students of man from all over tn,
world will flock to America for tn,
occasion and seize eagerly this only op
portunity ever offered. The cave
dwellers, whose mode of life Walt Nc
, Dougall treats with much historica
correctness in his recent fiction, will
then be either demonstrated as actuall,
, existing or proved to have died out
n. Y. World.
The great robber of moisture on tn
plains ia the VESTS evaporation. TIL
, activity of the winds is so great an,
! constant that more vapor is raised iron
, exposed water surfaces than in man,
regions of greater heat, The annua
evaporation is seldom if ever less thai
four feet, and may rise to eight feet
Water storage upon high plains wher
there are no trees, if not wholly a delu
. sion, is held to be somewhat delusive
, More hopeful is the expedient of dee
tillage, for, hidden from sun and wind
in the loose soil and subsoil, the moist
ure will thus be preserved at the yer
spot where it is needed to sustain veg
citation.