REVIEW. 
321 
of lime, alumina, oxide of iron, &c, and varies in color from yel- 
lowish brown to pinkish brown of different shades. Mr. Jacob 
Bell is of the opinion that spurious Calamine is not a factitious ar- 
ticle, but is the mineral known to the English miners as Baryta 
Calamine in contradistinction to the true Brass Calamine, which 
is really amorphous sulphate of baryta colored with oxide of iron. 
(U. S. Dispensary, 9th edition, page 1279.) Acted on by 
dilute sulphuric acid it effervesces, and the cold solution after filtra- 
tion, affords sometimes, only a brown flocculi of oxide of iron, at 
others, a gelatinous precipitate with ammonia, insoluble in an 
excess. Heated to boiling before filtration, the filtered solution in 
cooling deposits crystals of sulphate of lime. Dissolved in hydro- 
chloric acid, the odor of sulphuretted hydrogen is sometimes evolved, 
and the residue is less in quantity than with sulphuric acid. From 
this solution carbonate of ammonia throws down a precipitate of 
a light brown hue, not redissolved by an excess. 
Precipitated Carbonate of Zinc. — A very white powder soluble 
in acids with effervescence; its solution injcliluted sulphuric acid 
acts as pure sulphate of zinc. Its accidental impurities are iron, 
copper and cadmium, derived from the sulphate, and may be de- 
tected as in the sulphate. It is adulterated with carbonate of lime. 
It is then but partly soluble in dilute sulphuric acid, and its solution 
in hydrochloric acid gives a precipitate with carbonate of ammo- 
nia not soluble in an excess. 
L'OFFICINE (THE SHOP,) OU REPERTOIRE GENERAL DE PHAR- 
MACIE PRATIQUE, par Doryault, Paris 1850. 
We have just received from the author a copy of the third edition 
of this valuable work, which embodies, in a single volume of 982 
pages of two colums each, all the information wanted by the Phar- 
maceutist in his shop practice. 
From a perusal of the work, we are induced, strongly, to recom- 
mend it to the attention of such of our colleagues as are acquainted 
with the French language. They will find in it, besides practical 
information of every sort, hitherto of difficult access, a general 
dispensatory and formulary, with polyglot synonyms, which 
