Richland beacon., 1888-04-28
SCIENTIFIC AND INDY STRIAL.

has o c~cl a prize f 5000 for the artificial
production OF black, hard diamonds.
The average a"c of all the people Of
Fr nee IS given rs =! years, Two months
lG l. days. III average in the Knitted
IA e' is only > years, II months and
- days.
! company La, been formed in Berlin
TO lnaHufac .ure electrical watches. Two
small cells and small c,c,trc motor
take tie p'a.c of the ordinary watch
movement.
The mystery re ardin~ the whites Of
eggs af e. che ice cream factories have
us,d up their yo.ks is explained by
STAT mcnt that they axe used TO make
a'bumen zcd paper for photography.
Jennings were very numerous in
several yalleys in the Southern Norway
the past winter In many places the
snow was furrowcd for miles by tic
march of these little animals On their
m z alton >ou'hward.
The temperature necessary to met
wrought iron lies between 1909 degrees
and 300 degrees, and even at that ire
mendouS heat wrought iron is onls zen
dered fluid by the a.d tion Of small
amount of aluminium.
William C. Kelly. who ;i;cd lately at
Louisville, Ky, was one of the inventors
OF the Bc,scmer rio cSs for making steel.
tbs process was invented independently
by Mr. Kelly and Sir Henry Bcsscmer,
and patents were issued 10 both
Professor Lodges discovery of the re-
marSable effect Of static electricity in
freeing he air from dust and vapor has
been utilized by Mr.. J. g. Iorraln in the
contraction of an apparatus for dls,ipa-
ting the smoke produced by the dis
charge of cannon.
Fish parasites. eel shaped and very
sna !, have only recently become known.
though ten species haze now been found
in the Mediterranean sea and the Allan
tic and Indian oceans. These parasites
usually attach themselves to the hollow
parts of marine animals.
enc of the first sets Of paper car wheels
experimental with under a sleeper was
re emily on exhibition in Hudson, y. Y.
1t has a record Of 30l, 0D0 miles travel.
only the body of the wheel is of paper
The material i Il ca!cndered rye-straw
''board," )" or thick paper.
The magnetic properties of iron have
been found by NJ Z. edcboer to be un-
affected up to temperature of 100 de-
grees F.. beyond which they are rapidly
lost, becoming scarcely perceptible at
1900 degrees, and entirely disappearing
at 1870 degrees. They return in the
same way as the metal cools.
DR.. Arthur d, ban set, a Frenchman
by birth and president of the Transcon-
tiEental Aeria! Nav CATION Company, has
contracted with the firm of Miller. Met
calf & Parkin. of Pi,tsburg. for the steel
TO be used in the manufacture of NAM
moth air ships. Each of these ships will
be 654 feet long, IA feet in diameter,
cone shaped, Of steel and will cost $780,
coo each.
When Richard y. Allen made his set
of paper oar-whccls in 1859 he was
laughed at, ard it was with difficulty
that lie got the Use of a wood car for six
months 20 test his invention. The pull
man IA Car Company gave him his
first order for hundred wheel, in 1871,
and few years later the Alien Paper
CarWhcel Company made 1000 such
wheels in one year.
\ series Of experiments recently made
W a French mc,allurgist are stated to
..a+c proved that steel loses weight by
rust about twice as rapidly as cast iron
when eXCoscl u moist ar Ac;ddlatcd
wd'cr was foand to dissolve cast iron
much more rapidly than steel. This
would indicate that steel bridges are less
affected by the acids contained in the
smoke of locomotives than iron ones.
A recent invention in incandescent
lamp making applies subdivision of labor
among boys or shop girls. One passes
the lamp to the next, and so on, without
the employment of other appa a,us than
a bow-pipe and a pair of twec ers. Mer-
curry is employed, but no pump is re-
quired. One drop of mercury is said to
exhaust lamp without losing the mer-
cury. When finished, the lamp has the
same appearance as if exhausted in the
ordinary manner. No mercury is placed
10 the lamp further than a mere trace
(rcmoved after the lamp is sealed