The Wheeling daily intelligencer. [volume] (Wheeling, W. Va.) 1865-1903, 1900-11-03
SCIENTIFIC MISCELLANY.

~. COlLNillllU lltOOLLLhNls
A Human Bloodhound-Arctic I'm
migrants for sweden-Curious
Color Changing "A Submarine
workshop-Metal Dissolving by
Pressure-A Trick in Physics.
Glass springs-Maps of Climates.
Hot Weather Migration-Electric-
ity and Rheumatism. f5
The sense Of smell. so notably devel-
oped In sapages and some Of the lower
animals. Is not ordinarily very acute
among civilized people. An extraordi-
nary exception has been brought to no.
tice by Or. Bett. q German observer. In
ono OF his male friends the sense Is SO
keen that acquaintances are at once
recognized by their personal odor OF. a
distance Of several PAGES, and the man
makes no mistakes even when securely
blindfolded. The faculty Is not keener
In the bloodhound. This individual as
serts that every family has Its charac-
ter!stic odor, and that members Of
the family are to be distinguished BY
the degree OF the odor.
A new animal Is TO be given to Swc-
den II the efforts OF Herr Koltholf
prove successful. A male and q female
calf OF the musk OK have been brought
from the north. and us soon as they are
acclmated they are to be liberated AMI
descendants will multiply rapidly. The
animal Is to be reared not so much for
lis flesh as for Its thick brown hair.
The long hair is useful for some pur-
poses. but the flne wool beneath would
be highly priced u 1t could DO supplied
in quantity. =, -
The several varieties of prawns stud
led by Messrs. F. W.,Gamble and F. W.
Keeble adapt their colors by day to
those OF the surrounding weeds, but al
ways turn blue at night. In newly
caught specimens the morning and
evening changes are made at the regu-
lar time, even II che conditions Of light
are changed.
Tho diving bell used for work on the
new dry docks at Kiel. is 1888 feet long
and forty-si1 feet wide. with working
space height Of eight feet. It has q
suspension frame supported by two
barges,r and 10 divided into two cham
bers for the workmen and two for cleo
tho elevators to supply concrete and
other materieln.
Tho striking results Of hia lons-con-
tinued experiments on the agglomera-
ton Of materials by pressure have been
summarized by Professor Spring. OF
Lego. Particles OF oil plastic rub
stances may DO welded together by
pressure alone. and mixtures OF met
ais become alleged exactly az when
heated. copper and tin filinss produc-
Ing bronze and copper and Zinc filings
forming brass, while zinc and lead fl
ings alloy no better than when melted.
This Welding OF particles is explained
as due to tho forming OF @ solid solu-
ton at the interfaces under pressure
Pairs Of hat-ended cylinders were
placed for three to twelve hours In o
stove, OF temperature at least $50 de-
grees below the melting point OF the
most easily fused Of the metals and
ESQ degrees below that Of platinum,
and, under no greater pressure then
that OF tho upper. cylinder, the couplcu
OF platinum and other metals became
SO, firmly Joined that after turning in o
lathe the point of union could not DO
detected, while In the case OF the limo
copper couple n layer OF brass one-ona
hundredth OF an inch thick was plain
ly to DO seen. Metals incapable OF dis
solving each other-such as zinc and
lead-showed no sign Of union. No
amount OF pressure-even up to that
equivalent to- thickness Of thirty
miles OF rock-could make sand and
limestone particles unite. but as water
under great pressure dissolved consld-
cradle silica, which was deposited on
release Of pressure. It was concluded
that this silica solution has formed the
cement, binding together the grains OF
light like brilliant mirror. igs....