402 INDEX. 
Columbite, discovery of, in Massachusetts, 220 
Co 
Commun, J. Du, o i ypiehiate of i ees 51 
Conchology of the United. States, 378 
Congress of Savans, 
‘ooper’s rotative lomag 313 
Corrosive sublim 
Crystallized alts, ae Saeed, 391 
Cyanic acid, 
Cyanogen and sulphur, 38: 
———— perchloride of, 257 
Dearborn, H. A. S. oe on the North American men 78 
Diamonds, artificial 
Eaton, _— oy the number five, 17: 
—————— 0n alcohol fro: a= fe plants, 173 
Electricity of the tourmaline, 
Expeditions, polar, history of, 1 
Fenn on the rege psa of glass, 112 
Fib m, 377 
Field 
Finch, J. on ves 
Fish and Lizards in y circum 
Five, the favorite pong on in aaa re 
Fluxions, a borg upon 
—_ solution re - problem in, 283 
Fraunhofer, life of, 3 
Fulminating etc a new kind of, 397 
Gallic acid, new mode of obtaining, 39: 
Galvani i by different sestals, 268 
>» hew one, 215 
Geography, pi physica, effects of, 99 
on, in North Carolina, } 
prased Acie 
on the m: manulactory of "12 
Gold, medical uses of, 
Griscom, Prof. translations by, 257 
Hare, R. Prof. new — instruments by, 293 
Hassler’ 8 Larsen: 
R. plan we Fe an y of the at the United States by, 225 
Hayes, A. ‘ke - fan od — pigments, 173 
—— on a scarlet pigment 
Hydriodic elt: mode of preparing, 388 
rock of Saratoga, 
th, S. P. potennlagiesi observations by, 44 
Hitchcock, Prof., discovery of tin in Massachusetts by, 188 
