The San Saba news. [volume] (San Saba, Tex.) 1873-1966, 1888-05-18
POPULAR SCIENCE.

Street cans lighted and run by cleo
trieity the Julien-B Brush motor. are in
successful operation in St. Louis.
be Medical Rsoord SAYS that expired
arr is OFFICIALLY pure and contains no
microbes. Respiration. therefore, puri-
hes air as Tar as microbes are concerned.
Seven varieties of fishes examined by
nafualists Of the Challenger expedition
are found totally blind in the deep sea,
but have eyes when i. habiting shallow
water.
A chair which may be conveniently
moved from place TO place, and wherein
the occupant NAV be protected from sun
and wiud. or may throw the chair open
al top aud sides at will, has been pat
ented.
According to Munhalrs dictionary of
statistics the average age of all the peo-
pie living in France is % years months
and IL days. In the United States the
average is only ? years 10 months and
"A days.
Ashe, from the volcano Of Cotopaxi.
which fell at distance Of 800 miles from
the mountain, were found by analysis to
consist OF quartz, feldsfar, maquetite
and specular iron ore. Silver was pres
eni at the rate Of POO grains per ton.
sir Douglas Gallon. in a recent lecture
IN London, discussed the troublesome
foes Of thar foggy city. and suggested
that probably by distributing the cleo
tficai condition of the air by kites or
balloons. raia my be caused, and the fog
by this means dispersed.
Sometimes The pressure Of an artesian
flow Of wafer results from a gas pressure
instead OF from high head OF water.
Dakota, for instance, has several artesian
wells 1000 feet deep, with $50 to $50
pounds pressure, but there are no high
places near by to give this head OF
water.
In the phouosraDh of Mr.. r. NJ.
Hunter the aid Of electricity is secured.
Mr. Hunter fakes trace on a sheet Of
specially prepared carbon paper, and the
instrument repeats the words through
telephone receiver by means which will
readily suggest themselves to the cleo
trician.
II has been observed that snow is de-
structive Of marble statuary: and this
may be due, in part at least, TO the re-
Gently discovered fact that snow absorbs
sulphurou- acid from the atmosphere.
This ulphurous acid, according to Herr
sendtner becomes ozonizcd into sui
phnric acid In the neighborhood of
gas works the results are likely to be
more marked
Professor Vaughn reports to the
Michigan State Board of Health that he
gave typhoid fever to cat by inoculat-
ing her with germs obtained from the
water used by 300 victims of the scourge
ri lion Mountain, Mich. Outside Of its
novelty, III experiment is Of little
heneit to medical science, unless it be
further demonstrated that a scratch by
this cat viii inoculate a human being
against the disease.
W j. Bcale and c. F. St. John pre-
senied. in the American Association.
study Of the hairs in Silphium perlolia-
ium and Depsocus lacinotus in relation
10 insects. The upper surface of the
leaf in these plants, near the apex, IS
ihickly set with small hairs, all Of which
point toward the Zip. Similar hairs were
found all along the mid veins. side veins,
and veinlets OF the upper surfaces Of the
leaf The Cavities formed by the perfo-
late leaves are very small and hold but
lite water. They are very full after
any rain or heavy dew. These cups do
not seem to serve any purpose as insect
c4ichefs, rs only few insects were
caught during two weeks in which the
plants were watched, and they could
afford but little nutrit on. 1t seems more
probable to the authors that the Oh ect Of
the c ps with their water is to protect
the plants from crawling insects, and
This Is done most effectually.