300 = Prof. E.. D. Smith on Calculous Affections. 
Art. X.—On the application A ge EINE SS to Cal 
culous Affections; by the late Env D. Smiru 
M. D. Professor of a and Meunndiais in the 
South-Carolina College. 
Tur benefits which are continually resulting from chem- 
ical investigations, are peculiarly — in the application 
of such investigations to the advancement of medical sci- 
ence. For, although it must be esiaheaeed that a rash en- 
thusiasm may have unwisely apnea to explain the mys- 
teries of some Phenomena, that are observed in the living 
system, by the analogy of ihe cece of the action of chem- 
ical agents upon dead matter, it must be granted that there 
are cases, in which the useful application of chemical knowl- 
edge is conspicuous. Animal chemistry is undoubtedly a 
complicated subject, and from its nature, must necessarily 
involved in much obscurity ; but ingenious and patient 
analyses have already developed some facts in connexion 
portant an and interesting and well calculated to display some 
of the causes of imperfection in the healing art. The la- 
bours of Scheele, Wollaston, Fourcroy, Vanquelin, Pear- 
son, Berzelius and others, in the analyses of urine and uri- 
nary calculi, have diffused upon these subjects, a light that 
is very cheering to the friends of science and humanity. 
We are now enabled totake a clear and satisfactory view of 
what was heretofore involved in much doubt; and instead 
of timidly groping in the blind paths of empiricism, we may 
walk boldly upon the highway of correct principles. This 
is the sure road, and if we are careful not to —— from it, 
o~ of seg noblest ‘bles in practical chemist, 
isis ee * a ye ee as say hieh the caitnr war 
‘the eet and estimable sa a4 of this memoir 
his death, but it has not SA eget carson’ ‘ope 
