354 



UNIVEBSXTY OF THE STATE OF NEW TOEK 



Eozoon formations, 334 9 . 

 Erosion, evidence of, 328 2 , 340 4 . 



Faults, in iron mines, 328 6 , 341 6 ; at 



Barton hill, 346 3 . 

 Fisher hill mines, 341 1 , 346 8 , 347 3 . 



Gabbros, term, 327 9 ; general char- 

 acter, 330 4 ; origin, 330 4 ; petrography 

 of, 336 9 -39 4 , 348 6 . 



Gabbros on western shore of Lake 

 Champlain, J. F. Kemp's paper on, 

 326 5 . 



Garnets, characteristics, 333 1 , 337 6 , 

 34 7 5 . 



Geologic history, probabilities, 339 8 - 

 *40 4 . 



Gneisses, age, 330 3 ; altitudes, 327 8 ; 

 dip, 345 7 ; distribution, 328 2 ; general 

 character, 329 4 ; petrography of, 

 332 3 -34 3 , 345 6 , 347 2 , 348 1 . 



Goff mine, 348 2 . 



Gouverneur township, geology, 326 7 ; 

 limestones, 336 1 ; origin of gneisses, 

 329 s . 



Hall, C. E., Laurentian magnetite 



iron ore deposits in northern N . Y . , 



325 7 . 

 Hall, James, on stratigraphy of 



Crystalline rocks, 325 5 . 

 Harris Hill, 331 s . 

 Hunt, T. S., on geology of Port 



Henry, 326 2 . 



Iron mines, faults, 328 5 , 341 7 . 

 Iron ore tract, 3.',0 6 . 

 Iron ores, 340-51. 



Joker bed, 344 7 . 



Kemp, J. F., papers referred to, 326 B , 

 328 9 . 



Lake bottoms, evidence of, 328 7 . 



Laurentian magnetite iron ore de- 

 posits, paper by C. E. Hall, 325 8 . 



Ledge hill mines, 350 7 . 



Lee mine, 347M8 2 ; limestone, 334 6 ; 

 ore, 340 7 . 



Leeds, A. R., Notes on lithology of 

 Adirondacks, 325 8 . 



Lewis, James, mine, 349 s . 



Limestone, age, 330 3 ; petrography of, 

 334 4 -36 9 . See also Calciferous lime- 

 stone; Crystalline limestone. 



Lithology of Adirondacks, paper by 

 Dr A. R. Leeds, 325 6 . 



Little Orchard slope, 346 7 . 



Lovers hole mine, 341 6 , 346 6 , 347 1 . 



McKee, — , surveys, 345 1 . 

 Map, description, 331 1 . 

 Map of eastern Adirondacks, accom- 

 panying C. E. Hall's report, 325 8 . 

 Matthew, W. D., acknowledgments 



to, 327 3 . 

 Merrill, G. P., quoted, 330 2 , 334 9 -35'. 

 Millbrook, dikes, 339 6 . 

 Miller bed, 344 3 , 345 3 . 

 Mine, 21, 344 6 , 345 4 . 

 Mines, titaniferous and non-titanifer- 



ous, 340 6 ; bessemer and non-besse- 



mer, 340 8 , 341 2 . 

 Mineville group, 342 8 -46 1 ; altitude, 

 . 342 8 ; dikes, 339 7 ; gabbros, 331 8 ; 



gneiss, 333 8 ; silicates, 335 9 . 

 Mining prospects, 349 8 -50 1 , 351 6 . 

 Moriah, outline of geology, 331 6 ; anor- 



thosites, 336 9 -37 4 ; mines in, 340 6 , 349 6 . 

 Moriah Center, limestone, 334 6 ; mining 



venture, 349 7 . 

 Moriah Corners, dikes, 339 7 . 

 Moriah marble, 330 1 . 

 Mount Adam and Eve, silicates, 33} 9 . 

 Mount Bob, gabbros near, 3:31 s ; gneiss, 



333 8 . 

 Mount Harris, anorthosites, 336 9 -37 4 . 



New bed, 346 5 . 



Nichols pond mines, 350 3 . 



Non-titaniferous ores, general features, 



342 2 ; mines producing, 340 6 . 

 North Hudson, limestone, 334 6 . 



Old bed, 343 5 -44 3 , 345 3 . 

 Orange county silicates, 335 9 . 

 Ores, bessemer and non-bessemer, 340 8 , 

 341 8 ; detailed geology, 342 8 -51 4 ; 

 granular, 34 1 8 ; 

 non-titaniferous ; general feat- 

 ures. 342 2 ; mines bearing, 340 6 . 

 titaniferous, 341 6 , 351 6 ; general 

 features, 341 9 -42 s ; mines bear- 

 ing, 340 7 . 



