The Londonderry sifter. (South Londonderry, Vt.) 1883-19??, 1890-10-30
SCIENTIFIC AND INDUSTRIAL.

A mill at Alpena, Mich, makes good
MANILA paper from pulp of tamarack.
An Iowa court has decided that a
meteor belongs to the person on whose
land it falls.
Montana claims to have the largest and
finest jasper quarries in the world, re.
Gently discovered.
Anew gun has been perfected by Signor
Guidolli, of Lucca, which will fire sixty.
four shots a minute.
For every fifteen yards we descend into
the earth the temperature increases about
ten degrees Fahrenheit.
The fastest ship in the French navy
now has speed of 1865 knots per
hour without engine strain.
An Italian savant claims that in-
iecting current of electricity through
milk delays its souring for several days.
A new system of ventilation, never be-
fore used on ocean steamships, is to be a
factor of the two new vessels now being
constructed for the transatlantic service
of the Cunard Line.
A rich bed of coal has been discovered
in the Russian Amoor province of Siberia,
on Usuri River. The quality of the de-
post is said to be equal to that of the
best English product.
1t is the opinion Of noted specialists on
diseases of the nose, throat and lungs
that one baby in every three has a growth
in the nose that obstructs respiration. It
is due to covering up the head.
One of the steel saws at the Washing
ton Gun Foundry recently cut through a
piece of gun carriage metal four inches
in width by five inches in thickness in
twenty minutes. The saw is of English
make.
Two chemists are experimenting at
Freeport, Penn, with the view of pro-
ducing carbon points for electric lighting
from natural gas. 1t is said that by
burning the gas in specially prepared
furnace pure carbon is obtained, but as
yet at cost too great for practical pur-
poses.
A twenty. two-iDch iron pipe which
was recently exhumed after being buried
in the, earth for fourteen years, at Lassen,
CAL, came out as good as new. The
pipe was coated with asphaltum when it
was put into the ground. This may be
taken as good test of the preventative
virtues of asphaltum.
An old sea captains argument is re-
called at the completion of the race be-
tween the steamships City of New York
and Teutonic. His was the view that
the City of New York would win the
eastward passage and the Teutonic the
westward, because the vessels are evenly
matched, and one is better adapted to
English and the other to American
Goals.
The Buffalo On. " fire department
has lately received a novel fire engine
which has excited much interest in that
city. The carriage is constructed en-.
tirely of papier machc, all the different
parts of the body, wheels, poles and the
rest being finished in the best possible
manner. While the durability ant
powers of resistance possessed by thi'
material are fully as great as those O.
wood the weight is, of course, mucl
less.
A new machine has been designed fol
the excavation of sewer trenches. TIT
material in this system of excavation il
handled but once, and the operation il
continuous, a line of loaded bucket
passing out and line of empty ones re
turning to be filled at the same time
Ordinary excavating machines requir
the empty buckets to be returned owe
the same line over which the full one
are sent out, and it is claimed that 70
this reason the new machine can worl
more rapidly and cheaply.
The six-inch ordnance rife which sue
ceeded in demolishing the British armo
plate at Annapolis is capable of hurting
projcctile through 10b inches of wrough
iron placed 1000 yards from the muzzl
of the gun. The power of the eight
inch gun is 16 $40 inches, same dis
lance, and of the ten-inch gun twenty
one inches, same distance. The twelve
inch projectile will pierce twenty-eigh
inches at a distance of 5000 yards. TIL
thirteen-inch guns, which will be pro
vided for the battle ships, are capable 0
demolishing the heaviest armor.
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