Morris tribune. [volume] (Morris, Minn.) 1880-2000, 1884-09-10

The making of large lenses is a mat
ter of many difficulties, as may be in
farred from the fact that there have
been nineteen failures to cast the
tbirty-six inch glass for the great
Lick telescope to be mounted in Cali
fOrnia.
Prof. Young states that recent re-
searches show it to be extremity doubt
full whether any portion of the moons
surface ever reaches temperature as
high as 100 degrees f., although Lord
Rosse estimated that some parts must
rise to 500 degrees during the lunar
day of whole month and fall to 100
degrees blow zero ut night.
Nature's oXidizers-peroXide of
hydrogen and ozone-are suggested as
possible bleaching agents ofthe future.
Peroxide of hydrogen differs from
water in composition only in having
twice as much oxygen, with half of
which 1t parts readily and becomes
water Ozone, the natural purifier OF
the air, is probably the most powerful
oxidizing agents known, and has re-
markable bleaching power. The eX-
pense of obtaining these substances
now prevents their extensive use for
bleaching purposes.
| Researches In France 10y DIR. Schultz
have shown that citrlc acid possesses
powerful antiseptic properties, which
may give it an important place as u
food-preserving substance, since it is
believed to be free from the objection
of EMBELLISHMENTS urged against
other antiseptic acids. Meat frag-
ments placed in u five per cent solu-
ton of the acid were i'll u state of per-
feet preservation at the end of fifteen
days. Experimenting upon organized
germs, DIR. Schultz found that one
drop of solution of one part acid to
1000 of water placed in liquid con-
tanning bacteria and other forms of
microscopic life instantly caused
their death.
The mongoose, which was some
years ago brought from India to stop
the ravages Of the sugar cane rat in
Jamaica, has increased in that Island
to such an extent, and has become so
destructive to poultry and even to
fruit and even to fruit and vegetables,
that it seems liable soon to become a
veritable pest. Since being Intro
duced from Europe, the dog has be-
come very numerous in a wild state In
Australia, but, instead of combining it.
self to subduing the Australian plauge
of rabbits, it now causes great slaugh-
ter of sheep. The weasel and the stoat
which New Zealand people have inn
ported from England to keep down
the rabbits have multiplied so rapidly
that the remedy is expected to become
worse than the original affection in a
very short time.
/ Recent discussions by English au-
| ClOrlC16S SHOW Glldt uOCLOiS dic 1tII
from agreement concerning the dis
lance to which smallpox germs may
be conveyed by the air. DR.. Hill has
placed the limit at five feet. Others
have given fifteen, thirty, fifty, seven
i ty, 100, $50, 800 and 500 feet as the
probable width of the dangerous zone
around smallpox hospitals. Sir VIM
Jenner has insisted that it is half 6
mile, and several eminent physicians
have favored the theory that infection
may be disseminated to a distance O.
1000 or 5000 feet. Sir. J. r. Bennett
has thought it probable that infection
like small shot or smoke, might trave
mile or two, and that it is very pos
ible that smallpox poison nigh
strike person at a distance of fifty
miles from its starting point. Re
viewing the evidence thus far presen
ted on the subject, DR.. E. T. Wilson
, concludes that it is not proven tina
smallpox infection in an active stat
is ever disseminated in the open air al
far as 200 or even $50 feet.