General Index. 683 



Gneiss, schistose, laminar, porphyritic, amphibolic and epidotic, 384 



augitic, anthophyllitic arenaceous and talcose, - 385 



its topography, - - - 385 



dip, direction, &c. of its strata, r 390 



curvatures in its laminae, - 391 



its mineral contents, ... . 395 



its theory, - 400 



Gold, native, - - 459, 65, ^QQ 



and silver, idle search after, ... 68 



Gorge or Glen, Leyden, - - - 102 



Gorgonia, fosil, - .... . . 238 



Gould, Dr. A. A. his Catalogue of Crustacea, - 563 



Granite, its agricultural character, - * - 13 



its use in architecture, ... . -13 



how split, - - 17 



its price when wrought, - - - 17 



defined, . . 455 



its mineralogical characters, 466 



common, pseudomorphous and porphyritic, - 466 



porphyritic, . . ... 455 



graphic, - - - - 467 



its topography, . 469 



its pseudo- stratification, . 473 



its veins and protruding masses, - - 473 



sketches of its veins &c. in Conway and Blanford, 475 



in Westminister and Nowich, 476 



in Norwich, 477 



in do 478 



in Norwich and Conway, 479 



in Russell, - 480 



in Ackworth, N. H. 481 



in Chester and Chesterfield, 482 

 in Williamsburgh and Granville, 483 



in Chesterfield, 484 

 in Ct. Shutesbury and Conway, 485 



in Chester and Williamsburgh, 486 

 in Whately, Newport & at G.Head,487 



in West Hampton, 4gg 

 in Southampton and Shutesbury, 489 



in New Bedford and Fairhaven, 490 



do do 491 



do andTolland, 492 



in Williamsburgh, - 493 



in Whately, 494 



in Conway, - 495 



in do . - 496 



in do 497 



in do and Goshen, 493 



in do 499 



in Goshen and Norwich, 500 



in Colrain, 501 



its mineral contents, 501 



its theory, . 509 



Graphic Slate, . 35 



Graphite, , . 4^395 



Gray Copper, . 390 



Graywacke, its agricultural character, - 9 



its economical uses, - 33 



defined, . 248 



its peculiarities in Massachusetts, 249 



its mineralogical characters, 251 



conglomerated, 252 



brecciated, . . 255 



quartzose, - . - 256 



talcose, .... 257 



