The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1892-12-24
SCIENCE Anc INDUSTRY.


i-As to tho corrodibility of aluminium
IL appears that rs compared with iron,
copper, lead, zinc or tin, it is not &C
readily attacked by air, water wine
beer, coffee, milk, oil, butter, gas or sa
Iva. Vinegar and salt will attack il
somewhat more, but not enough to rem.
dei its use as substitute for iron, cop.
per, ETC., in the household utensils un-
desirable.
The originator of the theory that
the earth is round was probably Thales,
of Miletus, about 640 b. G. He not only
taught that the earth was globular in
form, but of the five zones, some of the
principal circles of the sphere, the ca
pacity of the moon and the true course
Of the lunar eclipses,
Costa Rica has over 5000 coffee
plantations yielding a product worth
81, 500, 900, while the product of its cocoa
groves is annually valued at 100000,
and of its sugar estates at 81, 700, 900, be-
sides a growth of 1000, 900 punches OF
bananas realizing about s400, 900. The
coffee plantations are chiefly cultivated
at an altitude ranging from 5000 to
4,500 feet above sea level.
The northern part of Honduras is
largely devoted to fruit culture. 1t is
we'll watered, soil fertile, and climate
healthy, with no drouths or frosts An
acre of land, properly cultivated, pro.
duces 800 punches of bananas yearly.
and the fibre is being turned to practS
cal utility. The exports of vegetables
last year from Honduras amounted to
81 800, 900 in value.
The Malayan savages know that il
is possible for plant or flower to be a
real oddity, for botanists tell us that
they have an extraordinary flower
which is known to them by name
which signifies "Wonder-wonder." II
is n flower, and a flower only, having
neither leaves, stem, nor root It is a
globular parasite, about three feet
across, and bursts into dream of love-
liness from the surface of decayed logs
and stumps.
California has become a great
raisin-producing state. Fifteen years
ago fruit grower there made an eX-
pertinent which proved a remarkable
buCCCSS. EAS blC bCtSOll was
warm, he dried his grapes on the vines
instead of by artificial heat. Then, not
daring to label the fruit as grown in
California, he sold it in San Francisco
as a Peruvian import. Since then thou
sands of acres of land have been trans
formed into raisin-grape vineyards.
Last year alone 10000 pounds of
raisins were sent to market.
DIR. Carter, of Birmingham, En-
gland, recently delivering an address on
brain work and brain workers, called
special attention to the danger of work.
ing too soon after meals. At least half
an hour should elapse before exerting
the brain. An hours close attention to
one sdbiect was as much as could profit
ably be given at sitting. He strongly
deprecated the use of sedative draught,
by brain workers who could not sleep
"A French scientific agriculturisi
has made series of remarkable eX,
periments with potatoes, in one OF
which he obtained yield of no less thar
forty-two tons of tubers per acre. He Sc
lected the best and soundest seed pota.
toes, plowed the land very deeply and
manured it heavily. He also stepped
luton made by dissolving six pounds
of salpeter and six pounds of sulphate
of ammonia in twenty-five gallons OF
water; then he allowed them to drain
and stand for twenty-four hours for
their buds to swell before planting
them,