Waterbury evening Democrat., 1890-02-04
SCIENTIFIC eREviTlEs.

ARTIFICIAL. glaciers as means OF
storing water for irrigation have been
proposed.
ORNITHcLoGIsrs in the recent work
published by the librarian OF the Lon
don Geological Society have tt:.aed fivs
hundred names formerly considered
obscure to their original source
AN incandescent lamp-l6 candle
power and 40 volts-lasted | "ao hours
before it gavo way Several others
lasted for more than 5000 hours and the
average life of 81 lamps was 4,@@' hours.
HERR SIE,.MNs, himself one of the
princes of electricity, owns the corn
He tells his fellow-countrymen that
Germany can not compete with America
in the number and usefulness of new
electrical inventions,
SIGSoR ScHLArARELLI. the eminent
Milanese astronomer, we'll known for
his researches on the canals of Mars.
says he has ascertained, after ten years
investigation, that Mercury has rota-
ton like that of the moon.
THE photograph is expected to prove
n valuable aid in the study of languages
The pupil can take home a piece of tim
foil on which is recorded his teachers
his own room as much as he pleases.
THE green color of ocean water de-
ponds upon the number of medusae and
other minute animal forms which in
habit 1t. Tho deep green Northern seas
literally swarm with these miniature
creatures; in some places as many as
l2S of them have been found in single
cubic inch of water.
A SOLUBLE pigment has been found in
the spines Of the South American tree
porcupine. The quilts are tlnged with
bright yellow ant. tipped with dark
brown. The yellow will dissolve in
ordinary water, but the brown resists
the solvent action aluohoi aid chioro-
form, though it yields to ammonia and
| potash
SApoLINI, Of Milan, has described q
| method of his which no states he has
employed successfully in sixty-two cases
| of deafness Of old age 1t consists in
hopping tho membrane tympani with
q weak oleaginous solution of phosphor-
us. He claims that the treatment di-
minishes the opacity of the membrane
| increases tho circulation and improves
| the hearing.
PRoF. ORION, tho State gcologist of
Ohio, says natural gas is now fixed
| quantity, its manufacture having ceased
| long ago. Hence the more that is taken
| out of the earth this less remains TO be
| taken out. With care and economy tho
| northwestern Ohio field with the pres
| emit draft upon it will last for from five
to eight years, but not for ten, he thinks.
Three years he gives as the average life
| Of gas we'll. But there are professors
| of exact" science who are confident
that the natural gas supply is practical
ly inexhaustible.
NICOTINE is one of the most powerful o.
the nerve poisons" known. Its virulence
! is compared to that of pruss!c acid. IL
! LirNs 10 made l. ..5.-.!r KS NtPDr in
| uuIv-!nts too sinai! to l." tnca>!i! 81; thVy
| are almost instantly s>!ls,d 1t s,'t'2S 81
| destroy life, not by attacking 4 few, hut
| o. Ill the functions essential to it, be
| ginning at the centcr-the heart. A sig
| mica . indication of this is that the e
| sno ST distance known which can coua
teract is effects; the system either sue
"um SO" u.vivcs Its depressing action
| o. the heart is by far the most notice
| able and noteworthy symptom Of nico
tine poisoning, The frequent existence
| of what IS 'nown as smokers heart
| in mon whose health is in no other re
| spect disturbed $ due to this fact.