Bed. — Highly poisonous, contain-
ing 1 '93 per cent, of vermilion ;
the tapers very highly coloured ;
slight ash.
Oreen. — Poisonous ; colour due to
arsenic ; metallic ash ; quantity
of arsenic not determined, but
probably about 1 per cent.
Deacon's Chlorine Process.—
R. Hasendever remarks that the
apparatus fov. Deacon's process re-
quires care in its construction, pre-
servation, and working. The chlo-
ride of lime produced by this process
was formerly too weak, and the con-
sumption of coal was high. Now
the chloride of lime contains 35 per
emit, of available chlorine, aad the
fuel consumed amounts to half the
weight of the finished product. The
chlorine obtained by Deacon's pro-
is BO dilated with nitrogen and
ihst tor perfect absorption the



surfaces covered with lime is six
times larger than in' the ordinary
chloride of lime works. The intro-
duction of the process is rendered
costly by these extensive chambers.
On the other hand, the amount of
labour is trifling, the consumption
of fuel moderate, and manganese is
entirely dispensed with. Deacon's
process is well calculated to remove
the hydrochloric acid nuisance from
the air and the rivers. — Chemical
News.
Explosion of Water. — - Prof.
C. Piazzi Smyth, in a paper to the
Literary and Philosophical Society,
Manchester, says : — That water is a
far more powerful exploder than
gunpowder, if you can get it (the
water) to explode at all, is now ex-
perimentally proved by Professor
Osborne Reynolds' electrical expe-
riments. This question occupied
my attention many years ago, on
comparing the far larger space occu-
pied by exploded water in the shape
of steam than by exploded gun-
powder in the shape of its perma-
nent gases.
