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CHLOROFORM IN POISONING BY STRYCHNIA. 
by one of metallic arsenic, is readily obtained, both from 
arsenic acid and from organic substances containing arsenic, 
which have been destroyed by chlorate of potash and hydro¬ 
chloric acid. The sulphuretted hydrogen, moreover, pre¬ 
cipitates the mercury, and thereby prevents its interference. 
It also precipitates any antimony that may be present, 
whereby the contamination of the arseniuretted hydrogen 
with antimoniuretted hydrogen is avoided. The author found 
that when antimony and arsenic were present in an organic 
substance, clear evidence of both metals could be successively 
obtained. The product of the action of hydrochloric acid 
and chlorate of potash upon the substance was introduced 
into the decomposing cell, whereby antimoniuretted hydrogen 
w r as evolved free from arseniuretted hydrogen. Afterwards, 
on the addition of sulphuretted hydrogen, arseniuretted 
hydrogen free from antimoniuretted hydrogen was evolved. 
The author observed that, according to his experience, 
sulphuric acid, as a rule, could be obtained more pure than 
hydrochloric acid. Moreover, he had found various samples 
of caustic potash to be contaminated with arsenic. Sul¬ 
phuretted hydrogen, prepared from diluted pure sulphuric 
acid and sulphide of iron, w T as found to contain traces of 
arseniuretted hydrogen. 
HYDRATED SESQUIOXIDE OE IRON AN ANTIDOTE TO 
ARSENIC. 
Fazole, of Venice, it is said, has lately experimented 
largely so as to ascertain the efficacy, or otherwise, of the 
sesquioxide of iron as an antidote to arsenious acid as a 
poison. To nineteen dogs arsenic was administered in 
sufficient doses to destroy life. To five of them none of the 
antidote was given, and all died. To the fourteen others the 
hydrated sesquioxide of iron was exhibited, and only two died. 
Many years since, M. Bouley, V.S., Paris, experimented 
with these agents on horses, and out of fourteen to whom 
arsenic was given, and subsequently the sesquioxide of iron, 
only one horse died. 
CHLOROFORM IN POISONING BY STRYCHNIA. 
Dr. M. Scherppert, of New Orleans, publishes a case 
in which a grain of strychnia being accidentally swallowed, 
recourse was had to the inhalation of chloroform. The 
spasms, which were dreadful, were readily subdued by it; 
