The Wheeling daily intelligencer. [volume] (Wheeling, W. Va.) 1865-1903, 1900-10-13

cess thus FAR In combating TINS plague
has come from taking advantage OF the
fact that the younger and weaker To-
Gusts cannot adhere to smooth sur
faces, like glass. their claws being too
short and weak.
A study of colored glass bottles to de-
terminc their efficiency In protecting
medicines, etc., from the chemical &C.
ton OF light, has been made by II. J.
Moller, OF Copenhagen. Black. rcd.
orange and dark yellowish- brown glass
gave the best protection: light brown
lsh-yellow, dark green and dark brown
ish-green glass, quite good: and BLUSH
green. violet. milky. blush and color
less glass, very little.
It has been noticed that body sus-
pended above liquid air receives strong
negative electrincation. Ebert and
Hoffman, find that this change Is not
due to the liquid air Itself, but 10 the
friction OF minute particles of very cold
ice suspended In It. This may account
for the electric effects OF polar snow
storms.
Vegetarians are rare among fish. says
an English naturalist, the tench and
gray mullet being perhaps the only
British species with such tastes. The
carp is mistakenly so-called, u favcr-
lite food being frogs.
For considerable time the conviction
has been growing that electrical devel-
opment Is destined to- check the flow Of
population to cities. OF extraordinary
interest In this connection Is the expert
ment at Hocllriegelserent, small viii
lage near Munich. where the water
power OF the river lsar Is being used
to generate electric current for agrlcul-
tural and other small industries over an
extensive area. A total Of twenty-five
firms and ninety premises OF various
kinds, in twenty-one villages and rural
districts, are now supplied with light
and power. Four turbines yield 1000
horsepower. while steam engines keep
In reserve an additional 1000 horse
power; and this energy is used for ISL
motors, with 1850 incandescrnt lamps
and 500 arc lamps. The plant is to have
an early extension OF 1000 horsepower.
The most significant feature OF the en-
terprisc Is the drawing of factories from
Munich. where certain firms have closed
their works to open new shops In the
country.
Guesscs at the carth's age are largely
based on the observed work OF water In
erosion. solution, etc. The carbonate
OF lime In the world has all been formed
by the action OF water on silicates, and
that of the ocean Is supplied by rivers
and the waste OF sea-clIffs. Prof, Eu-
gene Dubois finds reason for believing
that not more than one thirtieth part
Of the carbonate of lime discharged by
rivers into the ocean Is newly formed
from siicates. From the yearly addi-
tiun TO the sea by rivers. he calculates
that the formation of the whole csti-
mated minimum amount OF carbonate
OF lime on the earth would require about
45.000,0O0 years. and that 4 much longer
time has been necessary for the actual
amount. He Is led to infer from his
investigation that the formation of q
solid crust and the beginning of life
may date back mDre than thousand
million years.
To produce flexible photographic plates
Theodore Koehler coats thin sheets OF
wood, cclluloid pastcbOard or other ma
terlal with Il pastc-lIkc mixture OF
aluminium, sillcatc. (koalin). zinc white
and water-gnss. On drying, this fur
nishes n surface suitable for receiving
photographic designs.
Last years production OF saccharln
In Germany is given as equivalent to
10000 metcrlc tons OF sugar. The sugar
producers demand that 1t be sold only
as n drug. and its use In foud-stuff Is
prohibited in France. Belgium and
Greece.
The vItIation OF the air OF rooms by
gas and oil stoves and lights Is 4 mat
ter 10 be considered when arranging for
winters comfort. II Is assumed that
air becomes Injurious to health when 1t
contains more than thirteen parts OF
careonic acid gas In 10000, and Mr..
Francis Jones. an English school-trach-
er. has been experimenting to determine
what methods OF lighting AMI heating
may be used In an ordinary inhabited
room without risk, the average OF h!s
tests having been made after 10 y. M.
when tho air was ut its worst. lie
finds that he can recommend only n
coal fire and electric light, this COM
binatlon having never raised the pro-
portion OF curbonic acid IN the utmos-
phere so high rs twelve parts In 10000.
With coal ilrc and gas for lighting the
proportion reached twcnty-sevcn parts
in the evening; with Eas fire and cleo
tric light 1t rose to fourteen or fifteen:
with gas fra, and gas for lighting. 1t
soon became thlrty-two; aud with gas
cooking stoves-cven when fitted with
n Hue to the chimncy-thc vitintion
reached forty parts and more. No
triala OF oil lamps seem to have been
made.