The Cheyenne daily leader. [volume] (Cheyenne, Wyo.) 1870-1884, 1881-05-28
w eekly apLeader,
ISSUED VIE Wednesday.
Terns, % Q xesr. 81 50 aaIfxssr.
Gaau.ereiaI JJ Printing
SCIENTIFIC .Eahr.

Two pyramids have been discovered
ct Saggarah. northof Memphis. They
We're built by kings Of the sixth dynasty.
Ii is stated that the rooms and passages
are covered with Inscriptions which will
be Of high value To science.
In a second paper. by M. Muntz. on
the conservation of grain in reservoirs.
read before. the French academy 81
sciences, il is stated that TO secure allfi +,
Advantages of such means of storage
j grain should be comparatively dry.
the Closure perfect, and the teniperatuu
OF the walls pretty constant iA-b
The largest crueible steel castin ,
hitherto made was Effected recently il
the works OF a firm in Sheffield. In :
band 1t was a spur rim, 70 feet in
diameter, and east Whole. To cast il
go pots, each holding 50 pounds 4
molten steel. were used Steel whett,
are likely 10 supersede the c~ast-itn 1
wheels now in general use In the Ian
cashire mills.
A lectureby DIR. O. J.4.odge delivered
at the London institution, shows in 4
very Ineligible way the relation be-
tween electricity and light. The lee
ture was for the most part expository.
and traced generally the steps by which
Clerk Maxwell arrived at the almost
certain conclusion that light Is an elee-
tro-magnetic disturbance, with some Of
the startling results which that SAFE
ment implies. A prediction of what
seems already theoretically possible,
and may be soon praetically accom-
plished, vas advanced bysDr. Lodge
the transmission of views and pictures
by means of the electric wire.
A Lefpsic journal, which makes 4
specially Of matters relating to glass.
gives q method which it asserts will
prevent lamp-chimneys from cracking.
The treatment will not only render
lamp-chimneys |. tumblers and Ike .arti-
Giles more durable. but may Be applied
with advantage to %crockery. stoneware.
porcelain, ETC. The chimueys. tumb-
lers. ETC., are put into a pot filed with
cold water. to which some common
table salt has been added. The water
Is well boiled over a fire, and then al
lowed to cool slowly. When the arti-
Giles aretaken out and washed, they will
be found to resist afterward any sudden
changes of temperature. The process
is simply one Qf annealing, and tho
slower the coolihg part Of Il is conduc-
ted the more effective will be the work.
Ordinary letter-paper, says The Comy-
ties Rendus, if well heated and briskly
rubbed with the hand or a brush, ac-
quires electric. properties. 1t adlIercs
to tables and walls, and when the hand
is brought in contact with it slight cleo
trio discharges are quite visible if the
experiment IS made in the dark. Swe6-
ish Z Aflter-paper will, however, give
sparks several centimetres in length il
it Is thus treated: Steep the paper frs,
ina mixture of equal volumes Of nitric
and sulphuric acid. After the papof
has been pyroxilized through the action
Of the acids, wash it well with water
and dry 1t. If the paper isthen placed.
upon a sheet of waxed paper and brisk
ly rubbed, it loon exhibits energetic
electrical properties which may DO used
to repeat. almost every one of the usual
experiments in static electricity.
The Engineer states that Ciark's ap-
paratus for clearing off snow has bean
At work in Fore street, London. IL con-
sists Of q series Of metal plates plaesd
in an inclined position oneS above
another, directly beneath the man-hole.
SO that the snow falls upon them. Be
meath each plate are atmospheric gas
burners, by which heat is impaired to
the plates and the spaces than.
The gas is taken from an adjacent main.
An air shaft communicating with ths
outer atmosphere is provided for yeni3-
lation, and flues are also fixed SO a "a
carry the heat from the space between
the plates to the man-hole shaft mti
which the. snow i. placed. Ons. man
only y needed to work the machine e
sell, and his duty i confined % ruling
what mud may collect on die platss u.
ter the now melts and runs direct into
the sewer. No figures regarding il
cost or efficiency are given. 6kttFW