a 
» , 
INDEX. : 379 
Jrabtree, Eleazar, on sea-serpent, 154 
Crystallization of, a oor 
Crystals of quart 
Cummings, A Abt’n m. on sea-serpent, 
Cutbush, Dr. James, his electrical finn See 
Dana, J. F. Dr. on or a 137—localities, 4}. 
Daubeny, Dr. his remarks, 
Datholite of New-Jersey, i91,3 369 
Demonstrations, mathematical, 266 
Dentalium, 44 
eaten Professor, localities of sae hinge 296 
Geological section, 246 
Floral indications of autumn, 255 
Diamond hill, 13 
Dictionary, mineralogical, 3 
Differential thermometer of i Howard, 327 
Doolittle, foal on steam-engine, 101 
Dry rot 
Dust, ethoariicak remarks on, 
Dwight, Henry E. his remarks on ee Kattskill mountains, 11 
Earths, indications of their reduction, 
Eaton, Amos, Professor, aod sulphate of barytes, 174 
calities of minerals, 238 
Edinburgh, its —. of arts, 8 
Electrical lamp, 330, 3 
Emmons, E. locality of serpentine, 236—and of wavellite ? 249 
Emerald mines, 354 
Engravings, mode of altering the size of 342 | 
Entrocites, 3 
Erie, lake, epee on its shores, 170 
Eriocarpum, (a (acer) 25 
Ether, nitrous, new process for, 326 \ 
Eudiometers, ee by Professor Hare, 312 
Exogyra, genus, 43 
Expedition, wR, 178 
Facts, curious geological, 144 
arey, John, on musical ‘intervals, 65 
ng Cheever, 159 
Fluor spar, 141—f etid, 176 
Fond pa hae de St. his i 352 
oot, . e ed ; ee wats . 
ossil Sika 
Franklinite, Peale of, 323 
Furnaces for iron, 209, 212 
