AMERICAN JOURNAL 
SCLENCE AND ARTS. 
CONDUCTED BY 
BENJAMIN SILLIMAN, M. D. LL. D. 
| Prof. Chem.; _ &e. in Yale Coll.; Cor. Mem. Soc. Arts, Mar. ee 
L 
For. Mem. Geol, Soc., London; Mem 1, Soe., Paris; » Min. Soc, 
Dresden; Nat. Hist. Soc., Halle; Imp. Agric. Soc., Moscow; Ses Mem. 
in. Bete, Paris; So fast, - - an 
. aa Hon. Mem. Roy. Sussex Inst. Brighton, gas a 
Lit. Hist. Soc., Quebec; Mem. of various 
a =o wake bat Scien. Soc. in America. : 
