346 
Miscellany. 
all their properties, in extract of belladonna. As however, they differ some- 
what in their action with acids from the true asparagine, it may be neces- 
sary to establish several species of the substance, as has been done with 
sugar, the gums, &c. 
Journ. de Pharm. 
Crystallized Oxide of Chrome. — M. Wohler has succeeded in crystalliz- 
ing the oxide of chrome by passing the vapour of perchloride of chrome 
through a glass tube heated to redness ; the oxide is deposited in a crys- 
talline form. Two atoms of the perchloride, or 2 (2 CV + Cr CI 6 ) fur- 
nish 3 atoms of oxide of chrome 3 (2 Cr -f- 30) 12 atoms of chlorine, and 
3 atoms of oxygen. This oxide is black, and of a perfect metallic bril- 
liancy. The crystals are of the same form as those of the native per oxide 
of iron, and are as hard as corundum. Ibid. 
Alcohol. — Mr. Scanlan has devised a very good method of obtaining by 
simple distillation a spirit almost free from the oil which usually contami- 
nates it. The pipe of the capital of the still divides into two tubes, each 
connected with a distinct refrigerator; at their junction is a stop cock, so 
situated, that by turning it, the communication between the still and either 
of the worms may be opened or cut off, and the vapour produced, thus di- 
rected to one or the other. The oil being much less volatile than the al- 
cohol, does not begin to rise until the liquor in the still becomes consider- 
ably reduced in strength. By allowing the alcoholic vapours produced 
before this point is reached, to enter into one vessel, and then, the stop 
cock having been turned, receiving the impure spirit subsequently distilled 
in a separate condenser, he obtains an alcohol as nearly as possible free 
from its usual impurities. 
Kane. Elements of Pharm. 
Lead Colic cured by Hydrochloric acid. — Mr. Gendrin communicated to 
the Academy of Sciences at their sitting in December 1834, some addi- 
tional observations on the treatment of colica pictotum. He has ascertain- 
ed that the administration of sulphuric acid does not produce the same re- 
lief where the colic has been induced by the deutoxide of lead, as when it 
has been caused by the carbonate. In white lead manufactories, the use 
of this acid has always been attended with the happiest prophylactic ef- 
fects, whilst in those of red lead, it has proved powerless. He then an- 
nounces that he has found that diluted hydrochloric acid would remove 
the poisonous effects of the deutoxide as rapidly and certainly as the sul- 
phuric cures those caused by the carbonate. 
Journ. Hebdon. 
Correctives of Opium. — According to M. Puchelt, a German physician, sul- 
phate of soda is an excellent corrective of the unpleasant effects of opium 
