The San Saba news. [volume] (San Saba, Tex.) 1873-1966, 1889-02-01
POPULAR SCIENCE

There are hardly 100 electric motors a
work in Great Britain, while in Americl
there are 5000.
Perfect physiological development o.
the infant is absolutely dependent upor
mothers milk.
Gneisses and schists are the oldest
minerals known to US, and are, therefore
to be regarded as the foundation stone:
of the earth's crust.
Professor Ayrton defines inertia, from
the European standpoint, as resistance
TO notion" and, from the American
standpoint, as resistance to standing
still"
A hospitals for animals is one of Lon
don's rev humane institutions, and the
number of horses, dogs, cats, and other
animals presented for medical and sur
gical treatment has already necessitated
extension of space.
Professor Pickering of the Harvard
College Observatory, makes the rather
broad guess that the so-called canals
of Mars are areas of vegetation, possibly
immense cultivated tracts. 1t is easier
" SANoo man ~ tANIlOBoAA
A recent lecture by Professor Honey,
on the "Foundation Stones of the Earth's
Crust, y before the British Association,
was illustrated by real sections of rock,
so thin as to be partially transparent,
which were projected on the screen.
"Weighty thoughts" will no longer
be mere pigments of the Imagination. An
!. tod hoF Trn
even dreams or the effects of a slight
sound during sleep turns blood enough
to the brain to produce measurable i'm
preston.
A metallurgist gives as a reason why
steel will not weld as readily as wrought
IRON that it is not partially composed of
cinder, as seems TO be the case with
wrought iron, which assists in forming a
fusible alloy with the scale of oxidation
formed on the surface of the iron in the
furnace.
There are only three salamanders in
this country, but even three have been
a large enough number to prove the
falsity of the old belief, that salamaDders
live in the fire. They like to be where
it is warm, but they cannot live in the
fire. Their diet consists Of worms and
jelly fish.
DIR. Charcot, the great French ply
stefan, says that children under sixteen
cannot have their brains overworked
No forcing, he asserts, will get out of
them more cerebral work than the brain
will accomplish without fatigue 1t is
not till after the age of sixteen or eigh-
teen that surmenage becomes possible.
The following is given as an efficient
mixture for cleaning old brass: One
ounce of camphor gum, two ounces of
alcohol, two ounces Of spirits of ammonia.
four ounces of spirits of turpentine, one
pound Of star candles, one pound of
tallow and one pound of tripoli. To
mix first dissolve the camphor in the
alcohol, then melt the Ingredients and
mix together thoroughly.
The scientist Leuwenhock says: 81
have often compared the size of the
thread spun by full-grown spiders with
a hair of my beard. For this purpose |
placed, the thickest part Of the thread be-
fore the microscope, and from the most
accurate Judgment / could form. more
than a bundled Of such threads placed
side by side could not equal the diameter
of one such hair. II, then, we suppose
such hair to be ola round form, it fol-
lows that 10, 900 of the threads spun by
the full-grown spider, when taken to-
gether, viii not be equal in substance to
the size OF a single hair.