Daily Republican., 1885-10-24
SCIEN TlFlC.

Broken Hill claim at Siiverton, New
south Wales, which is said to run
through a lode more than twenty feet
wide. The chlorides have been found
over q distance Of nearly half mile.
A new alloy, q combination OF man.
ganese and tin, has been introduced as
suitable for bearings in which shafting
is required to run at Eigh speed, and
for other articles for which high de-
gree of tenacity and great closeness OF
grain are required.
Mr.. X. +. Friswell in paper read be
fore the Chemical Society, London, says
that the results of his personal expert
ence with toughened glass, during Al
period of eleven months, has caused
him to regard that substance when
for led into laboratory utensils as a
com plete failure.
A permanent commission has been
appointed in Austria for investigating
the causes Of explosions in mines.
Among the subjects to be dealt with
are safety lamps, coal dust explosions,
meteorological observations, the EN-
ployment of gunpowder for blasting,
and ventilation OF mines.
DIR. Albert Rosenberg, of Berlin, has
found in q solution Of method useful
substitute for expensive cocaine In
cases requiring local anath esia Of the
mucous membrane of the nose, pharynx,
ilarynx, etc. 1t is said to be more tran.
STORY in effect than cocaine, and on
repeating the application. to give evil
depce of cumulative action.
There is a q ua lttative test for butter
70 simple that any housewife can put
it into successiul practice. A clean
lpiece of white paper IL smeared with
i little of the suspected butter The
paper ID then rolled up and set on hre.
lIf the butter ~ pure The smell OF the
burning paper is rather pleasant Du'
the odor is distinctly tallowy II the
Z" butter" Ia made up wholly or in par'
of animal fats.
Maeresite has been introduced as q
lnew substance for lining furnaces, Its
APPROX innate composition Is carbona
lceous magnesia 90 30 to 1872 per cent.
, carbonate Jus limestone 6.05 to o6l psi
cent. argillaceous earth LAO per cent
Iron oxide 4 40 per cent, insoluble resi-
;, lduum 5 70 per cent Magnesite aftel
having been burned is chiefly employ
ed in the form of magnesia stone fo
: furnace bottoms.
DIR, Bonavia, OF the Lucknow Hortl-
> cultural Gardens, has but little faith Il
!, the statements az to to the suitability
and value of the Eucalyptus globulu'
: in swampy and marshy districts. III
} results of his experiments with the tre'
q confirm the unfavorable results tina
Il have also been obtained with 1t II
: Italy, and he is surprised that 1t shoul'
d ever have been deemed fitted to dis
lcharge the efficacious and salutar
: Functions that have been 30 UNIVERSAL !,
!, claimed on it's behalf.
"a An appliance for drying and super.
heating steam has been devised b.
lmultitubular boilers by Max Gehre, o
!, Hanover. As superheaters In the hre DO
n act uuequally and are liable to grea
Ia strain, the Gehre apparatus 10 place
In the smoke box. me apparatu
n itself is traversed by tubes forming
h continuation of those in the boiler, bu
of rather larger diameter. The steam
- thus superheaI cd by contact with tn
sides of the tubes and OF the ches
(which are continuously heated by tn
Iprouucts of com Duetion.
This Is the Bruce ystem OF Dalloo
Isigualing. An ordinary balloon
Iyerv translucent material Is employed
lin the Inside of the balloon electr
allow lamps are arranged. The bal 100
Liza a captive one, and the rope whic
attaches is to the earth is utilized II
the support of wires to convey u
lelectricity to the lamps. When th
Ibailuon is sent up at night the laml
ara caused TO illuminate the balloon ,
Intervals of longer or shorter duratic
as t., present signals to the distai
Iobserver, in accordance with The MOI
alphabet.
A great many "land locked" 81
mon were lately placed in the XIV
Thames by the Thames Angling fr
"a servation Association In the presence
several gentlemen who have aeep
Iterest in the development OF fres
water fisheries. This species of salm
"a considered to be admirably adapt
for a life in the Thames, as it is moi
laboratory ono. Fish that quit
waters of that river for the sea are
likely to return to 1t ever again, as
Hover portion Of the Thames ID lit
better than a huge sewer.
The Mobangi, q large and imports
!. tributary of the Congo and probably
Hover portion of the River Velle, b
lbeeu explored by the Rev. g. Greni
lin HIS little steamer Peace from
tCongu Ia a mean direction OF north
east as TAR as 40 30 north latitude, or
La distance of between 400 and 45u mi
IES Including the turDings of the strea
Sit Is navigable TOR vessels or conslo
able size, AZ its mean depth is stated
M. be rs feet. At the second rapids, a
r. north latitude, the width IL o'3 var
land at no point further down Is IL u
slcl tronter. Tn current flows at the r
F0 of from 30 TO 100 feet per mlpt
More precise Information regarding
discovered remarkaOiew aterw
n Iof Africa is expected to be pubiisl