682 General Index. 



Diluvium, its organic remains, . 171 



its stratification, - . . 169 



its agricultural character, - . 6 



Dionite, . - 409 



Dip and direction of the strata of Plastic Clay, 196 



of new red sandstone, 219 



ofgraywacke, - 271 



of argillaceous slate, - 289 



of quartz rock, - - 322 



of mica slate, ... 337 



of talcose slate, - - 358 



of Hornblende Slate, - - 380 



of gneiss, - - 390 



Direction of the Strata, Map of, - 523 



Divine Benevolence, proofs of from geology, - 247 



Dolerite, - ' . 409 



Dunes or Downs, ... .7 



how formed, . 130 



E. 



East and West System of Strata, 534 



Economical Geology of Massachusetts, 1, 3 



Elevation of Mountains and Systems of Strata, - 522 



Emmons, E. Prof, his Catalogue oi Birds, - 545 



his sketch of Strata, in Chester, - 330 

 Epidote, - 346, 398, 438 



Equisetum in graywacke, . - , 284 



Eternity of the globe considered, - - 401 



F. 



Fall River Granite, 15 



Falls, Turner's - - 99 



South Hadley and Shelburne, - - - 101 



Sphicket, - - 102 



in Fall River, - 103 



Pawtucket, - s 102 



Canaan, Ct. - 104 



Fasciculite, - - . 363 



Feldspar, green - - 398, 461 



blue and siliceous, - - 506 



Fetid Limestone at West Springfield, - - 214 



Fibrolite, - - 345 



Fishes in Massachusetts, Catalogue of - - 553 



additional, - - 605 



Fitchburg- Granite, - - - - - 16, 17 



Flinty Slate, - . .262 



Fluor Spar, . . 283, 343, 461, 502 



Fluvial Theory, - . . - - . 141,164,518 



Fowlerite, or ferro-silicate of manganese, - 344 



Fucoides in new red sandstone, - - 233 



in graywacke, .... 284 



G. 



Gadolinite, ... . 310 



Galena argentiferous, .... 348 

 Garnet, . . 312, 346, 398, 507 



Garnetiferous Mica Slate, - - 327 



Gay Head, its scenery, ..... 9J) 



Girardin on central heat, ..... 517 



Gneiss, its agricultural character, - - - 11 



its use iu architecture, ... 18 



quarries of in Massachusetts, 19 



how it differs from granite, - 382 



its mineralogical characters, - . 383 



granitic, 383 



