180 liebig's organic chemistry. 
pensatory is an earnest of the future beneficial influence it 
will exert, we cordially welcome its reappearance, and doubt 
not that its success will fully equal its exalted merits. J. C. 
ART. XLIV. — CHEMISTRY, IN ITS APPLICATION TO 
AGRICULTURE AND PHYSIOLOGY. By Justus Liebig, M.D., 
&c, Professor of Chemistry in the University of Giessen, &c, and 
ANIMAL CHEMISTRY, OR ORGANIC CHEMISTRY, IN ITS 
APPLICATION TO PHYSIOLOGY AND PATHOLOGY. By 
Justus Liebig, M. D., &c, Professor of Chemistry in the University 
of Giessen, &c. 8vo. James Campbell & Co. 1843. 
Although it is within but a few years that the depart- 
ment of Organic Chemistry has commenced to acquire im- 
portance, so rapid has been its progress, that, at the present 
time, it enrols on the list"] of its devoted cultivators 
names of many eminent for talent and industry. Among 
these the author of the above treatises stands pre-eminent. 
Appointed by the chemical section of the British Associa- 
tion for the advancement of Science, to report on the state 
of Organic Chemistry and its applications, he has undertaken 
to fulfil the task in three parts, two of which are now before 
us, We will endeavor to place before our readers a condensed 
abstract of the views contained in these reports, but for most 
of the details we must refer to the works themselves. 
The ultimate constituents of organized bodies are carbon, 
hydrogen, oxygen, and nitrogen, together with a few other 
elements not so essential to their formation. Agreeing- in 
ultimate constitution, animal and vegetable structure, how- 
ever, differ essentially as to their source of nutrition, and 
the forces by which this process is sustained. In both there 
is recognized a force whose natural state is rest, but which, 
