The New Orleans bulletin. [volume] (New Orleans [La.]) 1874-1876, 1875-12-19
SCIENTIFIC NOTES.

Eugene Schneider, the French statesman
and mechanical engineer, died recently, a
Paris, at the age Of 70 years. He was called
to the Paris Cabinet in 1921.
A German astronomer has discovered two
new small planets, not visible with the naked
eye, in the constellation Aries. This makes
the number of the lesser planets one hundred
and ffty-three.
Recently there was lifting match at Eu-
reka, Nevada, between two men, for a prize of
$500, the winner lifting Is Tbs dumbbell at
arms length the greatest number of times
The loser lifted it 1130, the winner 1l44 times
At Bonn, Germany. headaches, dyspepsia
etc., affecting several patients, have been
traced to evening studies pursued under the
baleful influence of green lamp shade from
which arsenic was set free by the heat OF the
| fame.
| To PREVENT GLUE FROM CRACKING Glue
frequently cracks because of the dryness Of
| the air in rooms warmed by stoves. An Aus
TRAN contemporary recommends the addition
OF little chloride of calcium to glue to pre-
vent this disagreeable property Of cracking.
Chloride of calcium is such deIiq uescent salt
that it attracts enough moisture to prevent
the glue from cracking Glue thus prepared
Will adhere to glass; metal, etc and can be
used for putting on labels without danger of
their dropping Of.
new substitute for leather has made its
appearance in England, and, as it met with
ftvor at the recent Maritime Exhibition in
Paris, brief description of the process of
its manufactre may be of interest. Prom 81
extended description of this product, We learn
the following regarding it's composition and
uses: Simple sheets OF hin cork are painted
over with a solution of India-rubber on one
side, and, when the coating has dried, Sec |
ond is applied over the first. piece of ia |
panned cloth Canvass, thin leather, or other |
material possessing similar qualities, is then |
dressed with two coats of the India-rubber |
solution on one side, and the cooled surfaces |
of the fabric and the cloth are then pressed |
together. The uncoated surface of the cork is |
now dressed with two applications of the
India. rubber solution, and a piese of linen,
cotton, or other fabric, IS similarly treated.
When the solution on the cork and piece OF
fabric is thoroughly dry, the TIVE suriaces are
brought together, and the compound sheet is
submitted to great pressure between rollers
under stamper or press. The result is per-
feet blending of the several sheets, which thus
form new mixed fabric of great strength,
and yet flexible and easily worked. Thus
prepared, it can be made into bags, harnesses
boots, ETC. indeed, it can be substituted in
almost every case where leather is now used.
Being thoroughly water proof, it may also be
used in the manufacture of buckets and other
vessels designed to contain water.
GAS FOR HEATING PURPOSES. We conf I
IDENTIFY look forward to the time-and we hope
it is not far distant-when in all large cities,
1t least, heating gas will take the place of !
solid fuel for culinary and general heating
purposes. What the consumption for that
use would be, we're the price sufficiently low,
,au scarcely be calculated; but if the con- '
SUMPTION of Illuminating gas on the Island of !
Man hattan alone may be estimated at fifteen !
million feet per day, the consumption of I
1eating gas, would, probably. amount to one '
hundred million feet; and since it must be
made on an enormous scale, at @ very low [
lost, and sold with margin for profit there Q
s reason to hope that the efforts to solve the L
question Of an economical heating gas will solve
lso the problem of cheap illu 4tinc gas; for K
hough the essential properties, and even the d
of these two will differ greatly, 8
7et any process that will enable us to make I
and feet, can, probaoty, be adapted to the "
manufacture of a cheap Illuminating gas In
he interests of metallurgy, OF nlanua curing,
nd of general needs of civilization, we well v
ONE every step toward the attalnm ent of this r
reat desideratum; and it seems, indeed, that G
20 more inviting field for the application of Il
clence, Skill and economy exists than that of p
as making This art has stood almost sta u
ionsry for nearly half century, while every l
Their branch of productive industry has 8
aade enormous progress; and if the signs of I
be times are not deceptive, tho 6ay is ap- 81
reaching when the demands of consgnsre II
ill force gas-making out Of tie rut of con-
srvatism into the path OF rogrcss that ia "
Characteristic of our time and people.-Enc:- "
sering and Mining Journa,. 6
How TO REACH THE NoRTR PoLB.-C. S. W
ays: " propose to reach the north pole by n,
le construction of an overground tubular II
lilroad, under the auspices of several govern al
tents, which should pay sufficient money to se
onstruct suitable shops tor the making of q ey
OGDEN tube five or six feet in diameter, to Ii,
8 made in light sections for transportation. | T,
fter some suitable landing place has been n,
,osen the road could be commenced at the
ock. The sections of the tube could be
aced on car, which would run inside of
70 tube and be propelled by hand and fur
shed with light, strong, convenient n
lmmy, engine and boiler to be used when -
CURED. Theoretically this idea has many ~. ~
,ints of great benefit to the explorers. A -, ~
< can be made and furnished with nearly a ne
the comforts of home; and the tube, 81
tting covered with snow in the e.
inter, would be quite warm. With a. a.
operly constructed stoves, plenty Of pro- ~
sions, and fuel, scientific party could ~ ~
Iss winter in the tubes quite comfortably. A.
have no doubt but that there are plenty OF =;
vii engineers who would jump at the chance a.
constructing road of this nature, if solid AZ AZ
support was guaranteed. If ~
is idea proved feasible, and the barrier of a.
0 miles that is supposed to exist could be Wv w
ereome, and the unexplored supposed open 80 80
a found, this road could be made the means 70
carrying material for the construction of -
liable fishing vessels. If the open sea does
ist, there is no doubt but whales are to be ba
und there in immense numbers, SO as to cir
IKE the road profitable, and furnish oil for On
9 people when the products of the oil re- Pa
on commence to give out. Shelter in ne
arly all emergencies would be found in a m.
I'd of this description. Who can tell of the
nefts that might come to the nations if the
7steries of the vast unknown region could hit
brought to light ? The outlay on road WI