Shenandoah herald. [volume] (Woodstock, Va.) 1865-1974, 1891-03-20
POPULAR SCIENCE.

A meerschaum mine has been discoy.
.r,d in Florida.
Doctor Meyer has just fidished book
On East African glaciers.
Tonqu;n, China, is developing vast
deposits Of smokeless coal.
Foreign powers are about to adopt the
electrical welding method of making
ihells for their artillery.
An Australian photographer is report
ed to get excellent pictures OF objects at
distance of sixteen miles.
An immense quarry Of lithograph
stone has been discovered about a hun
dred miles from San Antonio, Texas.
The highest temperature ever reported
from any part of Missouri by the Signal
Service was 106. 4 the lowest 21.5 below
zero.
The organs of smell of the turkey buz-
zard, vulture and carrion crow are so
delicate that they can scent their food for
a distance of forty miles.
The specific gravity of new-laid egg
varies from 1.0S0 to 1000; an egg,
therefore, is heavier than sea water, the
specific gravity of which is 1.030.
Bacteria is the name given to certain
forms found in animal and vegetable
fluids, because of their shape, and is de-
rived from a Greek word, meaning a
club.
The sun is tremendously large. 1t is
equal to 1900, 900 globes the size of our
earth, but owing to its lack of density its
weight equals that of only $4,000 such
masses.
Recent explorations in New Guinea
show that additional species of animals,
not marsupial only, but also insects, are
common to that island, and to Northern
Australia.
Electricity, as compared with othei
forces, has the great advantage Of being
extremely porta Die and capable of having
its direction and intensity changed With
the greatest ease.
Western Franklin County contains tie
second highest elevation in Massachu'
sets, an isolated peak in the town OF
Rowe, bearing the name of Mount Davis,
2170 feet in altitude.
The Royal Meteorological Society OF
England has received an account OF a
lightning stroke in Ireland which shat
tered the shells of some eggs without
breaking the inner membrane.
The accumulation Of electricity gene
rated by the friction of belts in an en-
CINE room is often a mattet of consider
able annoyance. A little steam escaping
under the belts is suggested as IL
remedy.
DR.. Broadbent tells the British Medi-
cal Association that the mark of weak
medical man is the indiscriminate use OF
stimulants in fevers, a ready resort to
narcotics and sedatives, treatment di-
rected to symptoms only, and fondness
for new drugs of high sounding names.
The phenomenon of latent heat was
first impaired into by DR.. Black, of Scot
land, nearly 13O years ago. His atten-
tion was directed to the subject by ob-
serving that mixture of ice and water,
though absorbing measurable amount
of heat, did not rise in temperature un-
til all the ice had disappeared.
1t has been determined that under no
conditions can the deaf learn to speak by
association and without effort, as normal
children do, but that in every case speech
is an acquisition only possible with great
and sustained effort on the part of the
pupil, assisted by the skill, patience and
perseverance of competent teachers.
To make an impermcable glue, soak
ordinary glue in water until it softens,
and remove it before it has lost its primi-
tive form. After this, dissolve it in lin
seed oil over a slow fire until it is brought
to the consisteDce of jelly. This glue
may be used for joining any kinds of ma
terlal. In addition to strength and hard
ness, it has the advantage of resisting the