The Republican. [volume] (Oakland, Md.) 1877-current, 1894-09-13
SCIENCE AND INDUSTRY.

carriers of the cholera bacilli, and there
is no reason to think that they do not
carry other disease germs, too.
"A cubic foot of cork weighs ID
pounds; coal, Sc pounds: earth, %
pounds; hay, 0 pounds; ice, 57l5 pounds;
copper, SAT pounds; cast iron, $50
pounds; gold, 1,20315 pounds: platina,
1919 pounds.
AS the alcohol ingested escapes
from the body in an uaaltered state, it
cannot, of course b. looked upon as
possessing any alimentary value. Ac-
cording to DR.. Il. Smith, alcohol does
not increase the production of heat in
the body as chemical agent, but by
the power it possesses of stimulating
the activity of the vital functions.
South Africa bids fair to hold
second place among the worlds gold
producers this year. The May output of
the Transvaal mines shows an output
above that of the past year. The total
output of the Witwaterstrand mines
for the five months ending with May
was equivalent to $50. 900 fine ounces
of gold, indicating a possible produc-
ton of about 1,60O.OOO fine ounces for
the present year. Other mines are be-
ing opened up in new districts-Age of
Steel.
-Sisalr Enp is being so successfully
culti>ateo Jamaica, that next year
considerable quantity of the fiber will
be exported. The plant can be grown
on barren lands and impoverished soils,
which are worthless FOR other crops.
The climate of the island is very favor
aole to its growth and it is destined to
become a great boon to the planters.
The average yearly wine produc-
ton of tie world is about eighty bill
lion gallons, of which Italy, Spain and
France furnish about one-tenth each,
or together, about third of the
worlds product In Italy, where farm
labor is one-thiTd of the price it is in
the United States, the soil for vine
yard is turned up to a great depth,
which is one reason why Italy is the
finest wine-growing country in the
world.
There is a photograph | took thir-
ty years ago" said a photographer,
showing a picture of a cottage some
where out on Long Island. You see,
it is almost as clear and fine as any
thing we get now. The truth is that
the progress of photography has not
been so great in these thirty Years as
most persons think. We've developed
speed, and we have produced more
rapid developers that are easily ham
died, but they are not so satisfactory
in other respects"
Jupiter is larger than all the plan
cts and planetoids rolled into one. But
although he is much larger than our
earth, he is not as heavy as his size
would make him appear. If we could
place large pair of scales on the sur
face of the sun, with Jupiter on one
scale and our earth on the other, we
would find that Jupiter weighs but
three hundred times more than our
earth.
Already the microscope has rem
dered vast domains of knowledge ac
cessib.e-f7 enables US to trace the in
ner CHANGES of deve lopment, the pa
tent growth of protoplasm. the con-
vulsive changes of the fertilization of
seed, to determine the existence or alb
sence of disease, to watch physiological
processes. But it is believed that there
is still a greater future in store for
microscopy In the direction of throw
ing more light on the hidden secretia
of organization the possibilities appear
almost limitlesS.
In lecturing on the ruby at the
Royal institution. London, recently,
Prof. John w. Judd, the well-known
English geologist, alluded to the
changes in color which certain kinds
of glass undergo when exposed to light.
The green glass panes in the conserva-
tories at Kew gradually change through
shades of yellow to purplish hue UNI
der the action of light. Rubies change
color in a curious way under the action
of heat. Blush rabies turn green. and on
cooling regain their original tint The
blue sapphire turns white and the yell
low corundum crystal becomes green.