128 Scientific Intelligence. 
degrees of consideration. vd 
Among these charcoal appears in the front rank.—Surgeons have long 
regarded it as one of the best antiseptics known. Confined betwéen pieces 
of linen according to the process of Malapert and Pichot it is more read- 
ily applied than when used as powder directly upon wounds; but the 
cleanly, is susceptible of a simpler and a more general application. 
Coke of Boghead coal,—in powder as proposed by Moride* like carbon 
* In view of the claim of Moride (Comptes Rendus, xlix, 242) as well as from its 
general interest the following extract from a report made to the British Secretary of 
War ewis Thompson (London Journal of Gas Lighting, Water Supply and 
Sanitary Improvement, 1856, v, 11) may here be cited. 
Mr. Thompson states that he has instituted a set of experiments having a purely 
money basis as their exponent.—The articles enumerated were each employed until 
e wn as the d i 
agent was added in successive portions; the other had reference to the discontinu- 
ance of any offensive smell; and the attainment of this last condition was regarded 
as the termination of each experiment. 
By this means he was enabled to draw up the subjoined table which shows eh 
glance the comparative cost of executing the same amount of deodorizing work wit 
each agent on the supposition that Boghead charcoal can be had at the rate of $3°00 
[==12s.] per ton, : 
Table showing the cost of Purifying one uniform Quality of Feculent Sewage 
by the several Articles mentioned, 
Boghead charcoal (coke), . - $300 
=e acid, - < F d - 2 : oan ; 
lack oxyd of man ese, ~ - < < - - ad 
Chlorid of lime, “a he dae " i ! : 10°75 
Peat charcoal, - ° é é 3 . s ie 
Subchlorid of iron (imperfect), = - - - - Bo ied 
Animal charcoal, - F i s 2 u oY O68 
Chiorid of manganese (imperfect), - : * - 17°50 
Bichlorid of mercury, -- -* P é 5 : - 18:00 
ero chlori zinc in damp powder, - - - - 26:00 
Chlorid of zine in solution as patented by Sir Wm. Burnett, - - 3700 
Sulphate of copper, - Es . . . - 39°00 
The sulphates of zine, iron, and alumina; common gypsum; sulphuric, sulphur 
tee go SEA les 5 
a 
