General Index. 



681 



381 



227 

 42 



Chromate of Iron, - - - 369 



Chrysoberyl, ----- 503 



Chrysoprase, - - - - 372 



Cinnamon Stone, - - - - ou, oiu 

 Clays Variegated, ----- 184 



Clays used for Fuller's Earth, - - " 38 



for making" alum, - - - " oq 



as a manure, - - - " « 



Cliffs at Gay Head, - - - * 1*6 



Cleavelandite, 506 



Climate formerly tropical in New England, - - 245 

 Cobalt, Arsenical, - 



Coal in new red sandstone, - - 



its varieties, 



Columns of Greenstone on Holyoke, - - - 80, 407 



at Titan's Pier, - - 408 



in Deerfield, - - - 40b 



Columnar Argillaceous Iron Ore, - - - 1°~ 

 Compact feldspar, ----- 443 



Concluding Remarks, - - - 71, 539 



Concord Granite, " " " " " Z 



Concretionary Carbonate of Lime, - 180 



Conglomerated Mica Slate, - - - - 329 



Contortions in Rocks, how produced - 348 



Copper, veins of in Greenfield and Granby, Ct. - - 62 



carbonate of and pyritous, - - - 507 



muriate of 508 



native and carbonate of and pyritous, - - 433 



&c. in new red sandstone, - "25 



&c. veins of in new red sandstone, - - 226 



Crabs, Fossil at Gay Head, - 195 



Cranston, R. I., Iron Ore in - - - - 56 



Crocodile's Tooth, Fossil at Gay Head, - - 193 



Crustacea in Massachusetts, Catalogue of - - 563 



Cumberland, R. I. Iron mine in - - - 54 



Cummingtonite, - - - - . - 347 



Cyclopteris in graywacke, - 285 



D. 



Danas Messrs. assisted by - - - - 3 



Davy, Sir Humphrey, his chemical theory of the earth, - 517 



Dedham Granite, - - - - - 16 



Deer field Mountain, ... - 82 



Deluge of Noah, how probably produced, - - 168 

 Deluges, Ancient ----- 5o7 



Dewey, Prof, assistance from, - - - o 3 



Deweylite, - 371 



Diabase, ----- 409 



Diluvial Current in Massachusetts, its direction, - 142 



proofs that it was southerly, 152, 159 



elevations and depressions, - 144 



bowlders or rocking stones, - 146 



grooves in the rocks, - - 159 



Diluvium, how produced, - 141 



of Plymouth and Barnstable, - - 143 



of Cape Ann, . . - 147 



of Worcester County, - 148 



of the Connecticut Valley, - - 149 



of Hoosac Mountain and Berkshire, - 150,156 



on Mount Tom, - - . 155 



on Mount Toby, - - - I 59 



in Europe and Asia, . - - 166 



its mineral contents, - - • l? 0 



