The new age., 1906-11-17

modelling in breadcrumbs. which are
soakeo In liquids of various colors and
are made elastic and almost unbreak-
aDle hV special process, Is the curious
ne" art OF Suzanne Meyer, a French
woman.
1he human breath has been found to
De fair conductor of electricity. a
spark from a Wimshurst machine being
longer In breathed than In pure air.
investigating further, Dufour has con-
cIuoed that the lung and skin exhala-
uons sensibly increase the leakage from
an electrically charged body, and it Is
suggested that the vapors rising above
a mock Of sheep or cattle may explain
the tendency of lightning to strike the
huddled animals
novel charge Is brought against the
common bedbug (Cimex lectularius) by
Dr. w. ]. Goodhue, medical superin-
tendent of the Molokai leper settlement,
who regards 1t as a chief agent In
spreading leprosy. 1t Is believed to
have greater influence than the gnat,
for 1t comes noiselessly, and during the
patients sleep, and bedding among
epers Is too little disinfected. After
long research DIR. Goodhue has demon.
strated the presence of the bacillus of
leprosy In the mosquito (Culex pun
gens) as well as In the bedbug.
An ingenious apparatus for drawing
the profile of river bottom is used by
italian engineers. 1t consists of a wheel
affixed to the bottom of a graduated
rod, which Is fastened vertically at the
side Of boat In such a manner that
as the boat advances up or down or
across stream, the wheel at the end of
the rod runs continually upon the bot
tom, the rod rising and falling with
variations of level By noting the depth
at chosen intervals of time, the ele-
ments are obtained for tracing an ac-
curate representation Of all the sinuosi-
ties of the bottom of the river, and the
variations of depth. In the saving of
time this simple apparatus possesses an
enormous advantage over the ordinary
method of soundings.
Germany has for some time possessed
dozen factories for the liquefaction
Of carbonic acid gas issuing from the
earth In the neighborhood of extinct
volcanoes. Last summer a large fac
tory of the same kind was opened near
tho do fo
cano in central France. The liquid OBJ
tained by the condensation Of these vol
canic gases Is said to be purer than
that produced by solely chemical proc
perse, near the Puy de Dome, the guam
tity of gas given forth every day is
reckoned at about half million liters.
The place is known as the poison foun-
have been found In the excavation, in
Guiding those of horse, a bison and a
mammoth.
According to Cosmos, the employment
Of circular disks of iron, turning with
great velocity, but possessing no teeth
on the edge, for saving metal, has be-
come common In many workshops.
Among other places where such saws
without teeth are used is the celebrated
Krupp gun works, whore armor plate
is sometimes cut in this manner. The
process is not a newly discovered one.
AS long ago as 1924 Darrier and Cola
don, at Geneva, experimental with
swiftly rotating disks of iron. They
found that when a disk about seven
inches In diameter turned with a per-
ipheral velocity of ten meters per sec
ond, it could be cut with a steel tool
pressed against 1t, but that when the
velocity was increased to twenty-one
meters per second the iron was unaf-
fected, but the steel tool was damaged.
At a velocity Of sixty meters per second
the iron disk even cut quartz and agate.