INDEX. 



Absorbing power of soils, page 353. 

 Adirondack clay, comp. of, 2IU. 

 Agricultural geology, 33. 



— relations of the Cliamplain 

 division, 129. 



— characters of the Medina sand- 

 stone, 143. 



— capacity of the Ontario division 



of rocks, 149. 



— — Onondaga limestone, 176. 



— — Marcellus slate, 1S3. 



— — Hamilton shales, 184. 



— — Catskill series, 196. 

 Alumine, 227. 

 Ammonia, 223. 

 Analysis of the Albany clay, 260. 



— water from Albany clay, 264. 



— — from wells in ditto, 265. 



— — of Massena springs, 266. 



— Hoosic roofing slate, 246. 



— Welch slate, 246. 



— Marcellus slate, 183. 



— Hamilton shale, 184. 



— Onondaga limestone, 276. 



— Cayuga clay, 282. 



— soil of Canastota, 276. 



— — Marcellus slate, 277. 



— — Green shales, 278. 



— — from Mr. Geddes, 279. 



— — near Green lakes, 281. 



— — from Manlius centre, 2sl. 



— — from D. Thomas, 282. 



— — from Mr. Young, 283. 



— — Hamilton shales, 284. 



— — from Mr. Ellis, 284. 



— ^ Pentamerus rock, 288. 



— — Onondaga limestone, 289. 



— — Salt group, 289. 



— — near Clyde, 289. 



— — upon plaster shales, 290. 

 _ _ of Wheatland, 290. 



[Agricultural Report.] 



.Analysis of soil of Lockport, 291. 



— — from Mr. Harmon, 2U0. 



— — from Mr. Devereaux, 291. 



— — of Moscow, 292. 



— — from Mr. Horsfnrd, 293. 



— — of Castile, 293. 



— — from Niagara county, 294. 



— — of Albion, 295. 



— — Genesee slate, 296. 



— — from Hoosic-falls, 334. 



— — of Hoosic, 296, 331 - 2. 



— — from Washington co. 333. 



— — from Fitch's point, 247. 



— — of Salem, 333. 



— — Petersburgh mount. 256. 



— — of Christian-hollow, 297, 



336 - 339. 



— — Atlantic district, 319, .320. 



— — from Warren county, 334. 



— — limestone, 335. 



— — of Scott, 341. 



— — red clay, 340. 

 Atlantic district, 318. 

 Atmosphere, 224. 



Beck's analysis of waterlimes, 274. 



— analysis of salines, 302. 

 Birdseye limestone, 122. 

 Black slate, 63. 



— fossils of, 05. 



Brewster's formula for mean tem- 

 perature, 16. 

 Browu sandstone, S3. 

 Calciferous sandstone, 118. 



— mineral contents, 120. 



— range and extent, 121. 

 Carbon, 223. 



Carbonic acid, 227. 

 Catskill division, 187. 

 Catskill group, 188. 



— dip and stratification of, 194. 



— at Gilboa, 195. 



47 



Catskill group, termination of the 

 strata, 195. 



— at Jelf'erson, 196. 

 Cauda-galli grit, 171. 



— change of structure in, 171-2. 



— extent of, 173. 



— agricultural characters, 173. 

 Causes of diluvial action, 214. 

 Champlain division, 115 - 117. 

 Chatham, soils of, 243. 



Chazy limestone, 122. 



Chilton's analysis of the water of 



Sharon springs, 301. 

 Classification of rocks, 35. 



— of the New- York rocks, 114. 

 Classification of soils, 229. 



Clays of New- York, comp. of, 357. 

 Climate of the State, 11. 



— Long island, 20. 



— valley of the Hudson, 21. 



— valley of the Mohawk, 23. 



— northwest of the Mohawk, 26. 



— soutluvest of the Mohawk, 28. 



— western part of the State, 30. 

 Clinton group, 144. 



— distribution of members, 147. 



— — of soils of, 209, 213. 



— relations of, 148. 



— in Herkimer county, 143. 

 Comparison of soils, 323. 

 Composition of simple minerals, 39. 



— albite, 39. 



— basalt, 42. 



— greenstone, 42. 



— felspar, 39. 



— hornblende, 40. 



— liypersthene, 41. 



— mica, 40. 



— pyroxene, 40. 



— serpentine, 41. 



— soils of New-York, 235. 



