The Abbeville press and banner. [volume] (Abbeville, S.C.) 1869-1924, 1888-06-20
POPULAR SCIENCE.

The fact has been noted that seamen,
as rule, are peculiarly sui; b;ect to color.
blindness. In tests made in the British
mercantile marine standard green was
pronounced red in 107 cases out of 159.
One of the three finest collections Of
butterflies in the world has been made by
Mr.. Berthold Neumoegen, of New York.
It contains 100, 900 specimens, and has
cost twenty years in time and $S5, ,0Oo(
in money. - 49, >
An argument against allowing children
to drink milk in summertime is drawn
by DR.. v. @. Vaughn, of the University
Of Michigan, from the liability Of the
fluid to develop the poison-tyrotoxicon
which is supposed to be the immediate
cause of summer diarrhea.
A wire charged with electricity which
remained dull at ordinary atmospheric
pressure became incandescent in mod.
crate vacuum, while, ON the other hand,
8 current which, " ould fuse wire az
ordinary pressure will scarcely redden it
if the pressure is sufficiently increased.
Snow produces, when melted, from
one. fourth to one.eighth Of its bulkinz
water according to the degree TO which
it has been compacted before melting.
Taking one.ffth as arough mean;we may
estimate the weight of a snow drift at
1875 pounds per cubic foot, OF 100 cubic
feet per ton.
A we'll borer in st. Louis says that it z
is very seldom he can penetrate thu
earth to any very great depth without
coming in contact with magnetic In, z
fluences. On Withdrawing the tools
spikes and other iron substances will ad.
here to it. Sometimes he encounters,
magnetism two or three times inthe SAND
well
The decay of animal teeth, and to,
some extent the loss of teeth of all civil
lied races, has been accounted for by the;
ablest English authorities on the score oil
the heavier draughts made by the brain
on general physical and nerve systems.
It is supposed that the force that would
he applied to repairing the teeth sused
elsewhere. s,
A curious effect Of, the wear and tesi;
to which the earth's crust is ever being
subjected, is exhibited in the singularly-
capped pinnacles existing on the South
river, in the Wahsatch mountains. There.
are hundreds of these slender pillars,
ranging in height from 40 to 400 feet,
most Of them crowned by large caps OF
stone, They are not works of human.
art, as might almost be imagined, but
are the memorial monuments OF the onee
rounded hills, from which they have beer
cut by the action of air and water. =
The affection known as writeri.
cramps is not confined to users of the
pen, but appears in telcgraphers and
others who make continual use of one
set of muscles. These cramps we're long
regarded as incurable. During several
years past, however, Wolff has been ap.'
plying gymnastics combined with mas.
sage to the muscles affected, and has sue.
ceedcd in curing more than half Of the
many cases treated. His process is
neither difficult nor tedious, being
simply regular movements of the fingers
or other parts, with rubbing or gentle
striking Of the muscles, continued not
more than an hour a day for several
weeks. g:
limited States Navy officer has In
vented life-saving device for thu
dreaded emergency Of '.man ,oyerboardn
which promises to be of value. A raft
buoy Of sufficient size to support man.
is attached to long and strong butlight
wire rope. The buoy is stocked with Z.
small supply of provisions, and is fur;
nished with a potassium compound:
which upon contact with the watei
ignites and burns brilliantly for twenty
minutes. If the drowning man, aided
by the fame, succeeds in reaching thu
raft, he can be drawn to the vessel with.
out the necessity of lowering boats.
Should the rope break and his own YES.
sci lose track Of him, he has, with thu
provisions, chance Of sustaining lht
until picked up by others. 81