The Caldwell tribune. [volume] (Caldwell, Idaho Territory [Idaho]) 1883-1928, 1906-03-03

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Dr. 2. l. 7, Heroult, the French
metallurgical expert, who has been ex-
aiming the mining and other re-
sources of Canada, predicts that In
ten years the Dominion will have be-
come great metallurgical country,
having an iron industry larger than
that Of any other country In the world.
SO, too, he thinks that within decade
Canada will outstrip all other countries
IN wheat growing. In ontario and
Quebec there are immense deposits of
magnetic, which have remained unde-
veloped for lack of cheap fuel. The
invention Of the electric smelling pro-
cess removes this obstacle, because In
the neighborhood of the ore deposits
water power Is abundant.
The importation Of Injurious birds
and mammals into the United States
mas been carefully guarded against
since the passage of the Lacy act ON
May 20, 1900. In the Ave years end
Ing June 3d. 1905, the authorities Is
sued 1891 permits for the entry Of
1,OO6,964 birds Chiefly canaries), 2,S46
mammals and thirty eight reptiles, and
thirteen permits for the entry of $500
eggs of game birds. OF the consign-
ments 4O2 were inspected. No injurl-
GUS animal Is known to have been adj
mitted. but seven mongooses, fifty four
nying foxes or fruit-eating bats, one
starlings have been refused entry. At
honolulu six keas were refused entry.
Statistics showing the enormous
waste Of energy involved in the pro-
duction Of artificial light are always
interesting, If for no other reason than
that they must continually stimulate
Inventors in the search for better
methods. Sir James Dewar recently
presented these figures before the
Royal Institute of Great Britain: In
an ordinary candle the total amount
of energy transformed into light Is
only 2 per cent. OIL and gas lamps
are not more economical The mean
descent electric lamp utilities 3 per
cent of the energy expended the arc
light 10 per cent, and the magnesium
light 15 per cent. Then comes the
glowworm and mocks us with Its 90
per cent of expended energy turned
into light.
The possible value of radium to the
physician still remains chiefly a mat
ter Of conjecture. Two Italians, Tiz-
zoni and Bongiovanni, have satisfied
themselves that 1t has an important
influence upon rabies, and that 1t may
act either upon the virus or directly
upon the bitten animal. When the
virus Is exposed for four to thirty-six
hours to radium rays 1t is converted
into powerful vaccine, injections into
q rabbits eye overcoming the other
wise fatal effects of inoculations with
dogs virus. With a powerful speci-
men Of radium, the direct exposures
of several hours during six days, anil
mails inoculated forty eight to one hun
dred hours before treatment were saw
ed, while similarly inoculated animals
not treated all died.
1t is well known that pure quartz
glass possesses the property of trans
very abundantly, the so-called
chemical rays Of light, by means of
which Photographic effects are produc-
ed, and it has often been attempted to
make Photographic lenses of quartz
alone. Unfortunately, quartz also pos
gesses the property of double refrac-
ton, SO that, unless the opening of the
lenses is very narrow, good images
are not produced. Recently a French
optician, It. NORM, has succeeded In |
making small Photographic lenses of
quartz glass in which some of the
difficulties have been avoided, and the
lenses show great rapidlty of action. |
Still, the problem, confessedly, has not |
been entirely solved, and the new
lenses are recommended by their in
ventor only for special purposes. AS
tronomers are particularly DESTROYS to
obtain Photographic lenses possessing
the peculiar permeability to the actinic
rays that characterizes quartz.