The sun., 1893-10-01

BILE. for instsnce.-is required 10 entirely de-
stroy the nexibility ofthe fibre, ana renderitso
brittle that II may easily be crumbled between
the thumb and finger. Another mistake is
poWs1 o t9 its high S or
snmption being that because asbestos is infus-
ibis lt must, OF necessity be good non-con-
and proved on good authority. namely. that by
placing vessel OF water on a sheet OF asbestos
more simple proof stiii. 1T BY % piaeing a piece II
Wool Wool on sheet OF asbestos mIllbonrd ON hot
worked into u fiufiy mass. there is thus OBJ
tained non.conducting material. but IL IL the
conuctor oy ,he nbres that " the Teat non e,-
tanglo the nir.
The sugar interest. commercially and in
dustrially considered. has been enhanced In
value by the introduction OF some highly per-
fected machinery. the latest example being an
evaporatfnR apparatus for insuring complete
and rapid circulation OF the cane juice. COM
bined with the most effective distribution OF
the steam for heating the juice, The con-
made very, large and arc connected to special
water and vapor receivers: there Is also
o t6e maa IN GSondsnse
aenf SfSTE in part e the
Of such gases being one OF the sources OF in
terruption to the free distribution and orcula-
usual back pressure or exhaust steam OF three
to I'VE pounds per square inch Is annie to to
action. Both labor and fuel are said to be
largely saved by the use of this apparatus
Avery extensive series Of experiments has
lately been conducted BY Prof Liversidge of
Sydney. New South Wales. with almost every
description Of iron ore from all quarters OF the
globe. and with otherlbodies, such as spenel.
garnet, serpentine bornite. lin stone con-
glomerate. artifcially prepared ferric hydrate.
oyebIss.se SweeIss rIsee CHROME Sts Iron ranHinitei
each Of these we're ground in a porcelain NOR
tar and crushed to a rne powder in an agate
lifting eighteen ounces. was employed;
and IN all cases but, one. viz, pyrrho-
magnetic property. % Varying % amounts % Of mag. ma
netite were separated out ofthe powder by the
magnet The porte portions separnsted by this
cally In order to mako sure that thoy con-
sisted Of magnetic: and thus the magnetic
properties OF specimens OF chrome iron. frank
other minerals. were found to be entirely due
tributed through their mass. and only pvrrho-
tite shares with magnetic the inherent prop
ertY OF being attracted by the magnet
An expert in railway matters declares that
the day is not far distant when the switching
engine will be entirely dono away with. its
place being taken by the electric capstan. The
latter is already in use to a certain extent on
some OF tho Pennsylvania lines. The motor.
which actuates the capstan by means Of gear.
ing. runs at the rate OF some twelve hundred
revolutions minute. and the gearing. motor.
and switch OF the capstan are all contained in
water tight. iron case tho top OF which
comes flush with the ground: there is a cover
to 1t which is readily removable so az to give
easy access to the motor for oiling and clean
Ing. The wires containing the current for the
meteor are carried through an iron pipe below
the surface OF the ground. and the switch for
starting and stopping the motor is operated
readily by the foot OF the attend dant In charge
of the capstan,