Elk City mining news. (Elk City, Idaho) 1903-1913, 1905-06-03
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3 Ns@lnvention

That eggs decrease in weight during
incubation has been proved by careful
weighings by II. S. Gladstone. The
average loss Of a pheasant's egg from
the first to the twenty-frst day was
found to be two drains twelve grains,
and one egg which weighed seventeen
drains nineteen grains when laid had
become reduced to thirteen drains ten
grains on the twenty-third day.
A striking instance of the change
which the cultivation Of natural
science is capable of causing in the
face of the earth Is afforded by a re-
mark Of Andrew Murray concerning
tha result achieved by horticulture II
England. They have, he said, affected
the appearance Of all England. mo
where can days ride now be taken
where the landscape is not beauti-
fed by some of the introductions Of
the Royal Horticultural Society"
There are bacteria and bacteria.
DR.. Charrin, a French Psychologist,
has been experimenting upon rabbits
with various vegetables sterilized by
the most approved processes, and he
has shown that 1t is erroneous to de-
clare that the less bacteria there are
in our daily food the better. What is
required is to weed out the harmful
organisms from the benefcent kinds.
The rabbits fed on sterilized food soon
died from maladies set up by non
assimilation Of the vegetables, but 9th
er rabbits fiourished on similar ster-
ilized vegetabl that had been after
ward treated with suitable bacteria
Much interest has been awakened
by the experiments at Lyons in feed
ing silkworms with leaves stained
with various dyes in order to cause
them to spin silk of corresponding
hues. When fed on red food the
worms spin red cocoons and the silk
seems to retain the color. The expe-
ximents with leaves stained blue have
bcen less successful. Although the
expectation has been raised that this
process may prove of commercial i'm
portance. the experiments say that
they do not expect to make any dis
coveries which will affect the indus
try of dyeing.
But for their expensiveness 1t is
probable that pavements Of india
rubber would be largely used In city
streets. That, at least, is the infer
ence to be drawn from experience with
rubber pavement in London. In 1881
the two roads under the hotel at Eus-
two inches thick. This pavement, I'M
der heavy traffic, remained In contln-
uous use for 81 years. In 1902 it was
renewed, having been worn down to
about half Its original thickness.
Lately a rubber pavement has been
laid in the courtyard of the Savoy
Hotel, London. The cost for covering
IN area of rs by 30 feet was nearly
$4,000.
For two years an exhaustive mono
graph on a typical lake Of Italy mas
been in course Of preparation by the
italian Geographical Society. The pic
turesque lake Of Bolsena, within easy
reach from Rome. was selected for tn A.
purpose, and the studies include the
geographical and geological features
the rainfall and temperature and sea-
sonal variations, the changes of level
the seiches or rhythmical pulsations
of the surface and the life forms. The
seiches constitute one of the most in
teresting of the phenomena Thaeo
have regular period of twelve or fif-
teen minutes, the rise Of the water on
occasions reaching a foot, and the os
citations are often so marked that the
natives speak Of the lake as painting.
They are more conspicuous at Marta
than on the opposite side Of the lake
at Bolsena, rise of seven inches at
the former being correlated with one
Of four inches at the latter.