The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1888-03-31
SCIENCE AND INDUSTRY.

During the past season two natural-
lists have found that wasps remember
the locality of their nests for ninety-six
hours.
Several European specialists have
made the curious observation that acute
rheumatism is more prevalent in dry
than in rainy weather.
In this country nearly three dol
lars worth of milk, cream, butter and
cheese together are sold and consumed
to every dollars worth of beef. The
market for dairy products is practically
inexhaustible
1t is said that the biggest quill
toothpick factory in the world is near
Paris. 1t was originally quill pen
factory, but when these went out of
general use the factory turned to the
toothpick business, and now makes
20,000,000 annually.
According to eminent French
authority, the proper temperature in
well-vcntilated places is us follows:
Nurseries, asylums and schools, SO de-
grees; workshops, barracks and prisons,
so; hospitals, 81 to Ga; theaters and
lecture rooms, 66 to 60.
"A writer on "Thc Climate of the
Lake Region" (extending from Lake
Ontario to Lake Superior), after digest
ing the meteorological records of the
past fifty years, predicts intolerably
hot summers for that region in 1894,
1905, and 1917, and exceedingly cold
winters in 1901, 1912 and 1928.
Manufacturers complain that the
| African rubbers now received do not
yield, when strained and cleaned, more
than thirty to thrty-tive per cent. pure
rubber gum. owing to the natives adul-
terating with sawdust, barkdust, ETC.,
to overcome the inconvenient sickness
of the juice.
An automatic chess recorder has
been produced by DR.. Wurstemberger,
of Zurich. An ingenious electrical ar
rangement prints on strip of paper
the index number and letters of the
square from and to which the piece is
moved, and moves of the black pieces
have different place on the tape from
those of the white.
1t is found that smoke. rs it issues
from the muzzle of q heavy gun, can
be almost instantaneously precipitated
by means of II simple electrical ap.
paratus. The invention is based upon
the researches of Professor Tyndall
Lord Rayleigh and Professor Lodge in
the action of electricity upon floating
dust and vapor, and it should be OF
considerable military value.
AT Il recent meeting in London DR.
E. p. Thwing stated that Americans art
more susceptible to the influence O
alcohol than Englishmen, and more
affected by tobacco than Hollanders
Turks or Chinese. This he attributes tt
an increased sensitiveness of the nerv
Gus system, induced by the high pres
sure life of this country. Doubtless th'
climate, also, has much to do with it.
The salt mountains of Nevada, tn
salt island in Louisiana, rs we'll as va
rious other deposits of chloride uf so
dium in different parts of the world, ar
almost absolutely pure chloride Q
sodium. Of 22.2S per cent of salt
found in Great Salt Lake. the remarka
BILE proportion of 20.19 per cent. i
found to be pure chloride of sodium
and yet many of the streams runnin
into the lake contain vastly larger quan
titles of other salts.
Investigations with regard to tn
prevalence of destructive insects hay
led to curious and interesting discoy
cries. 1t is settled beyond all questio
} that the insects increase with the nd
vance of civilization. The reason {
this is supposed to be because civilize
communities raise more fruits, grain
| and vegetables for insects to live o
| than state of nature supplies. Ever
vegetable product and every variety {
fruit and flowers, have their special il
sect retaincrs, so to speak, that live an
/ thrive on them. The entire loss occ;
stoned by insects in the United States
, estimated at about $3.50, 600, 900 yea
, the annual loss on cotton alone bein
r $15, 100000.