——~, on the cutting of steel by soft iron, 342 
INDEX. 307 
Coal Gas retorts, Plumbago in ase 
Cog wheels, on the form of the pot 686 j 
Con mbustion, new and curious variety o' 
Compression of water, instrument for measuring, 195 
Condensation of Gases, 352 
Congelation of Mercury, 1 
Conics and Spherics, Prof. Dutton’s, 358 10° 
Connecticut, tit Sh and Mineralogy of the, 
arrangement of the nae of the, 24. 
Contagion and tnfection, 19 
Conybeare and Phillips, Outlines ot the Geology of England and 
ales, review of, 203 
Copper of Lake Superior, 43 
Crank Moti agape on, 316 
Creuzot, + ates of, 3 
Cc ec io 
ples! © agi 
Cutbush, J. Localities sof minerals at — Sa 
———_—_——,, Remarks on the pmpeeine and SE of 
the Chinese and Brilliant Fires, 
€yanogen, condensation of, 356 
D. 
Dana, J. F., on Lon Theory of the operation é. Ditrous ine! in 
Eudiometry, 3 
Deerfield Ces 10 
Deflagrator, on some improved forms of, tae! Sa 
Desiderata in the Geology of the C t, 22 ail 
esigns, new mode of printing, 19h 
Deutoxide of Azote in Eudiometry, 338 
Dewey, Prof. C., additional sate ‘of Aviesting: 248 
, Caricography, 264 
Diluvial, 42, 210, 242 
Doolittle, I., translation of Girand's 2d Mavetitcs on 0 Navin 
? RS 
Drought in Sicily, 18 9 
Dutton, Prof., Conics - Spherics, 358 
Dy e, superior green, 1 
Dying, new work on, 368 
E. 
East and West Rock, 2 
Editor, remarks on the Cryophorus of Dr. Wollaston, 140 
