404 INDEX. 
Gibbs, G. Col. donation to Am. Geol. Soc. 357 
Gilmor, R. jr. Mr. pyrites npg A 233 
Glass, manufacture of, 370 biche not eternal, 238 
Gold o : 
Gorham, John Prof. his elements, 330 
Granite in South Carolina, “s bo 2 
Granger, Ebenezer, Esq. on oal eaaasin of Zanesville, 5 
Green, Jacob Prof. on bones of. rattle snake, 85—crystalization, 98 
Greenland, population of, 3 
Green stone of S. Car. 2 ee Lake Huron, 259 
Griscom, Jeli Prof. on pats literature mad science, 368. 
Gum elastic tree, 
H; 
Hadley, Dr. his ee of ee lime, 231 
Haines, Reuben letter from 
y, 72 
Hall, 7 Esq. on the staining of wood, and on medical electri- 
city, 166—on fossil hopes, $47-—cbal- 24 
Hall, F. Prof. on iron, &c. 57—agaric mineral, 234 
Hare, Rob. Prof. his deflagrator, 103—345—on chlorine, 344 
_ Hay. Abby. his electrometer, 372 
Hayden, H. H. Mr. his Ge ological essays, a7 
Hydrogen & Chlorine, explosions of, 341 
Hygera del Oule, elastic gum tree, 44 —_ Historical anecdote, 33 
History of Lake Superior copper, 248 
Hitchcock, Ed. on Fossil fish, 365 
Heematite of Lake Huron, 2 
Holley, Myron, Esq. on water cement, 231 Hones, 26 
= es, memoir on, 79 Hot Springs of Wachitta, 29 
Huron Lake, geolo ony ofits Ms W. Shore, 254 
Hydrargillite, American, 23 
de 
Tce, circumstances renting its formation, 179 
Illinois, fluor spar, 24 
ee rmont, 57——micaceous, 332 3 
——, native of Louisiana, 45 _Iron, mountain, 63 
——, Sulphat of, manufactory of, i in Si ge 26 
isatis tinctoria, roposed for r spring fe 
355.” iy paper, 370 
