Kootenai County Republican. (Rathdrum, Idaho) 1899-1903, 1901-07-26
|ki4se$Cience
NseglafveiS1tion

aluminium and magnesium have re-
Gently been combined In Germany to
produce an alloy which does not rust.
and which Is as light and tenacious as
pure aluminium, while 1t can be worked
with the file and the lathe. 1t Is named
magnalium.
Dr. Ludwig Mond has discovered
method for producing illuminating gas
and coal gas at an expense OF cents
= thousand feet. II Is thought that this
will effect revolution by chenIening
electric power and 1t will also have an
important bearing on the production Of
Open-hearth steel.
The suns surface Is known to be sub
sect to greatly increased disturbances
every eleven years. known as the sun
spot period. Auroral displays and dis
turbances OF the earth's magnetism
have q similar period. and the pictures
OF the corona which have been obtained
show markedly Characteristic varieties
OF form dependent also upon the sun
spot period. So one Of the principal
efforts Of scientists Of late years has
been to obtain pictures Of the corona
with as much detail AZ possible
A remarkable discovery by Captain
n. r. Dcasy, In tho Kueniun Noun
tains, u that Of species Of marine
plant, called grasswrack, ct an eleva.
ton Of 1850 feet. more than 10000 feet
higher than the summit of Mount
Washington. The plants were not
growing, but were found. with their
leaves and fruit. deposited In a bed ten
or twelve feet thick. which was COW
cred and Mterspersed with strata OF
blue clay. The explanation offered 10
that the deposit once formed part Of the
bottom Of salt lake.
Mr.. Betitiard. of the London ZoOlogi-
cal Society. calls attention TO peculiar
Jty Of the cars OF tigers which he thinks
may be claased under the head Of PRO
tcctivc markings" On the back OF
each ear IL very bright white spot,
and when the ears are directed for
ward these spots are conspicuous from
the front. Mr.. Beddard suggests that
when the tiger Ia sleeping In the dim
light OF cave or thlcket the spots on
ats ears may appear to ali enemy. look
ing In. AZ tho CLEAN OF Its watchful
eyes. and thus save the sleeper from
mn unexpected attack.
The earthquake waves due to the Jap
enese shock Of June 10. 1896. were re-
corded on the self-registerlng tide
gauges at Honolulu and at Saucelito, In
the bay OF San Francisco. DIR. Charles
Dawson has recently compared the cal
culate<i velocity OF the earthquake
waves with the velocity formerly cal.
culated from the usual formula. lie
found that at Saucellto, for example.
the firxt crest OF the waves reached the
tide gauge ten hours and thirty-four
minutes after the shock. having trav-
crscd IN this time the distance OF 4.787
miles at mn average velocity Of 884 feet
p second.
1T has been observed that on account
OF the absence OF an atmosphere on the
moon. and the consequent lack Of grada.
tion In shadows. the eye Of the observer
10 seriously mislcd In judging the actu-
IL relief Of objects forming the lunar
landscapes. Professor Prinx. Of Brus-
sails. has recently developed method
Of avoiding this difficulty. and OF seeing
tho craters and other details ON the
moon In their natural proportions. TAX.
ing advantage OF the fact that AZ the
moon travels around the earth the &C.
csntricity Of Its orbit produces the ef
feet Of slow filtration. or balancing Ia
and fro. which causes its face to b.
inclined now little one way and now
4 little the other way. Professor Prins
makcs two photographs OF the lunar
object to be studied. At opposite points II
the filtration. and then combines then
In stercoscopc. wherenpon the ohjec
stands forth In full relief This prin
ciple has hitherto been applied only /,
Photographic OF the moon as whole
and not to particular cratcrs or regions
ZONE CENT POSTAGE CCMtNG.s