of
the present consumption, has already been pointed out. Another
advantage the author merely mentions, namely, the easier condensation
of the sulphurous fumes in refineries situated in cities, because the
larger amount of acid available for dissolving greatly facilitates
working and makes the usual frequent admission of air into the
refining pot for the purpose of stirring and testing unnecessary.
The more air is excluded from the refining fumes the easier they can
be condensed.
Work may be carried on continuously, the vessels C and D being empty
by the time a new solution is finished in A A. Thus, the plant shown
in the diagram, covering 26 ft. by 16 ft., allows the refining of
40,000 ounces of fine silver in 24 hours; that is, four charges in A A
of 800 pounds each.--_F. Gutzkow, Eng. and Mining J._
* * * * *
A CASE OF DROWNING, WITH RESUSCITATION.
By F.A. BURRALL, M.D., New York.
As is usual at this season, casualties from drowning are of frequent
occurrence. No class of emergencies is of a more startling character,
and I think that a history of the case which I now present offers some
peculiar features, and will not be without interest to physicians.
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