Brongniart on Organized Remains. 71 
Art. XIII. Notice of M. Brongniart on Organized 
; Remains. 
Tis distinguished mineralogist, so advantageously known 
by his excellent work on mineralogy—his researches, in com- 
pany with Cuvier, into the subterranean geography of the envi- 
rons of Paris, and his superintendence of the great porcelain 
manufactory at Sevres, is forming an extensive collection 
of organized remains. = 
Through Professor Cleaveland, we have received from him. 
the following 
NOTICE 
Concerning the method of collecting, labelling, and transmitting 
specimens of fossil organized bodies, and of the accompanying 
rocks, solicited by M. Bronantart. 
The study of fossil organized bodies, appears to be of the 
utmost importance in determining the relations of different for- 
mations, one of the principal objects of geology. 
In order more effectually to appreciate the value of this 
method of investigation, it is necessary to multiply observations 
_ —to endeavour to render them exact and precise—and especial - 
ly to make them upon a general plan. 
M. Brongniart has been long occupied in such researches. 
The ®ssay published by M. Cuvier and him, upon the geology 
of the environs of Paris, has afforded an example of their use. 
He has laboured, since this period, to apply this method to 
other formations, which contain the relics of organized bodies ; 
but he stands in need of much assistance, and he presumes to 
ask it, not only of naturalists, but even of all persons interested 
in the sciences. By means of the following instructions, he 
endeavours to avail himself of the kindness of persons the least 
“onversant in the discrimination of fossils. 
