688 



General Index. 



Plumbaginous mica slate, 



Plumbago, . . . 



generally associated with gneiss, 

 Porcelain Clay, 



its agricultural character, 

 Porphyry, its use for ornaments, 

 sienitic, 



black and green, 

 defined, 



its mineralogical characters, • 

 compact feldspar, 

 antique, 

 brecciated, 

 its topography, 

 its geological position, 

 its mineral contents, 

 its theory, 

 Potter's Clay, 



Prehnite, .... 

 Price of wrought and unwroughf granite, 

 Primitive Greenstone, 

 Prismatic Iron Ore, 

 Pseudo-stratification of sienite, 

 of granite, 



Purgatory in Sutton, 



in Newport, R. I. 

 Pyritous Copper, 



Pyrope, .... 



Q. 



Quartz, crystalized, yellow, rose red, &c. 



and pseudo-morphous. 

 and yellow, 



drusy, 



crystalized in geodes, 



tubular, smoky, and amethystine, 



fetid, . . . 



radiated, • , v . 



crystals, their use, 



Rock, its agricultural character, 

 its economical uses, 

 granular, used as buhrstone, 



used in making glass, 

 its place among the rocks, 

 its mineralogical characters, 

 its topography, 



dip, direction, &c. of its strata, 

 its mineral contents, 

 associated with graywacke, 



Q,uartzose Breccia, 



Conglomerate, 



Gtuincy Granite or Sienite, 



R. 



Radiaria Fossil at W. Springfield, 

 Radiated Pyrites, 

 Rattle Snake Hill, 



Ravine of Westfield on Agawam River, 



and Gorge of Deerfield river, 

 Red Oxide of Copper, 

 Report, how divided, 

 Reptiles in Massachusetts, Catalogue of 

 Rhoetizite, 



Richmond, Iron Ore in 



329 

 47, 395 

 397 

 36 

 12 

 20 

 21, 453 

 21 

 442 

 . 443 

 443 

 445 

 446 

 . 447 

 448 

 449 

 450 

 37 

 434 

 . H 

 375 

 178 

 456 

 473 

 106 

 . 107 

 225, 462 

 398 



343 

 461, 502 

 399 

 . 372 

 435 

 435 

 503 

 508 

 51 

 11 

 22 

 41 

 40 

 316 

 317 

 320 

 322 

 323 

 , 256 

 . 318 

 319 

 14 



240 

 190 

 . 77 

 89 

 90 

 226 

 3 

 552 

 345 

 56 



