Chemical Works. : 3 
discover any material discrepancies between them and the numerous 
published memoirs and other writings of these eminent men. 
12. Berzenivs’ System.—We mention this work merely to say 
that the translation published in Paris is denounced and disowned by 
the author, and we must wait patiently for a French or English trans- 
lation which he will sanction as accurate. From such a source we 
are entitled to expect new treasures of information. 
* * . 
In writing the foregoing brief notices we could have pointed out 
some errors, but where there is such prevailing excellence, this duty 
may well be left to the private communications of personal and sci- 
entific friends, and to the vigilance and sagacity of the authors in 
revising their future editions. 
13. Dr. Hare’s Compenpium.—This work was written for the au- 
thor’s pupils, and is made the companion of his public lectures. It 
Contains a luminous and comprehensive sketch of scientific chemis- 
try, and one as full as was consistent with the limits which the author 
had prescribed to himself, after allowing sufficient room for a detailed 
account of many varieties of chemical apparatus and experiments, 
especially those which have been the result of Dr. Hare’s own in- 
Vention and ingenuity. Excellent wood cuts are given of most of 
these, and many of them have been exhibited and deseribed in pre- 
ceding Volume of this Journal. No man in this country has labored 
80 much, and so successfully, for the improvement of practical chem- 
‘sity, as Dr. Hare; and if we were to mention only his compound 
blowpipe, his eudiometers, and his galvanic instruments, this state- 
ment would be fully established. In a future edition of his able work, 
he will probably enlarge, somewhat, the elementary part, and digest 
€ things into system, that are now inserted in appendix. 
s # * 
The foregoing notice’ were begun, only with the intention of men- 
Honing the improved edition of Dr. Henry’s Chemistry, and of some 
other foreign works; but they have been extended, almost without 
‘ig0, and are now thrown out, as being perhaps capable of con- 
veying some useful hints to young students of chemistry, who have 
hot had an Opportunity of consulting various authors, most of whose 
Works are wel] known to professors and other teachers. 
We have, however, no idea of giving a sketch of all the chemical 
authors of this age, although it might have been very agreeable to 
Mention some other works, as those of Scheele, Bergmann, Lavoi- 
‘ter, Chaptal, Black, Davy, Dr. F. Bache’s System for Medical Stu- 
