686 



General Index. 



Magnetic Oxide of, iron, . . 296, 347, 359, 363, 399 



Made, ..... 291 



Maiden, vein of iron ore in, . . 55 



Mamillary argillaceous iron ore, . . . 190 



Mammalia, Catalogue of, in Mass. . . . 544 



Manganese Oxide and Bisilicate of, . . 361 



in Plainfield, . . . .63 



in Conway, . . . .64 



in Hinsdale, N. H. . . .64 



in Winchester, N. H. . . . 64 ' 



earthy oxide of, how produced, . • 123 



oxide of in mica slate, . . 344 



Map Geological of Mass. how constructed, . 2, 113 



Marble of Berkshire, . . . .28 



Marl, . . . . . .38 



how produced, ... 120 



Market House, Boston, its granite, . . .16 



Martha's Vineyard, iron ore in, 57 



scenery of, 98 



Mather Cotton ore fossil bones, . . . 205 . 



Meridional System of Strata, the Oldest, . . 525 



the Largest, . . 530 



Metals and their Ores in Mass. . . .51 



Metallic Veins and beds their origin, . . 520 



Mica Slate its agricultural character, . . 11 



its economical uses, . . .23 



its mineralogical characters, . . 326 

 staurotidiferous, amphibolic, garnetiferous and spang. 327 



argillo micaceous and arenaceous, . 328 

 anthracitous, plumbaginous, and conglomerated, 329 

 indurated, .... 330 



its topography, . . . 



of Worcester Valley, . . . -^33 



dip, direction, &c. of its strata, . . 337 



contortions in, 338 



reins of segregation in, . . 341 



its mineral contents, . . . 342 



its theory, . . . .349 



Mica, crystalized, prismatic and plumose, . . 504 



Micaceous Oxide of Iron, . . . 359, 433 



Mineral Rods, . . . . .68 



Waters, . . . . .49 



Miscellaneous Items, .... 520 



Molybdenum Sulphuret of, 397 



Monomoy Beach its gain upon the sea, . . 128 



Monument Mountain, . . . .77 



Hill, Quincy, . . . .85 



Mosaic Chronology, how reconciled with geology, . 165 



Moshop, Indian Giant, . . . 204, 205 



Mounds in the Western States, not artificial, . 168 



Mount Hope Bay, .... 94 



N. 



Nahant, ..... 95 



Nantasket Beach, .... 96 



Nantucket iron ore in, . . . .57 



its scenery, . . . 98 v 



Narraganset Bay its scenery, . 94 



