ancient Indian sculpture, 8^f; Mingoes, Logan, Henry Jolly, 10; Mr. Slack's spring garden, 14; Lewis Wetzel, 14; Brady and Brady's Hill, 20, 21; Connecticut Reserve, 21, 34; Poland, Dr. Kirtland's collection of shells, 22; Mahoning valley, tertiary deposits, 24^f; coal deposits, 27; natural mounds, fossil plants, 28^f; massasauga, rattle snakes, 32; gypsum of Canfield, 34; ponds of Portage Co., 35; Lymnæa stagnalis and Helices, &c., 35.^f ----, miscellaneous notices of, _S. P. Hildreth_, xxxi, 1; --Portage Co., 37; Ohio and Pennsylvania canal, 40; Brady's Pond, 42; Falls of the Cuyuhoga, 45^f; travertine, 50; marl beds, 55; mastodon bones at Massillon, 56; Fort Lawrence, 57; village of Zoar, 59; and great ferruginous deposits, 61; Newcastle, coal, 63; Gnadenhutten, 64; Rev. J. Heckewelder, 66; Coshocton Co., 69; narrows of Licking, 70; rock strata, 71; trilobites, 72^f; Delaware sulphur springs, 73; sulphuret of iron, 74; Zanesville, 75^f; cannel coal, 79; cabinet of the Atheneum at Zanesville, 79; fossil bones of ovis, &c., 80.^f ----, Geological Reports of, noticed, xxxii, 190; xxxiv, 196, 347^f; xl, 126. ----, ibid, with extracts, xxxiv, 347; --extent of coal in, 348, 357; degradation on Lake Erie, 349; buhrstone of, 352, 353; iron ore deposits, 357; fossil elephant of Salt Creek, 358, 362.^f ----, Indian mounds and relics, _C. Whittlesey_, xxxiv, 361. ----, hurricane in, Oct. 20, 1837, _E. Loomis_, xxxiii, 368.^f ----, prairies of, xxxiii, 230. ----, cannel coal in, xviii, 376; xxix, 39; xxxi, 79. ----, buhrstone in, xxv, 233; xxix, 142; xxxiv, 353. ----, mastodon remains in, ii, 245^f; xxv, 256; xxx, 394; xxxi, 56; xxxvi, 189.^f ----, heights of various points in,_ C. Whittlesey_, xlv, 12. ----, meteorological observations in, see under _Meteorology_. Oils, depuration of, xxiv, 200. ----, action of, on oxygen gas, xxiii, 190. ----, bleaching, xlvii, 196. ----, proportion of, in different oleaginous plants, xviii, 150. ---- of balsam copaiva, xxviii, 384.