INDEX 



The superior figure tells the exact place on the page in ninths; e. g. 328 4 

 means four ninths of the way down page 328. 



Adirondack pass, cliffs, 328 4 . 



Adirondacks, previous study of ge- 

 ology, 325 1 -26 6 . 



Analyses, table, 341 3 . 



Anorthosites, term, 327 8 ; dome shaped 

 peaks, 327 7 ; distribution, 328 1 ; pe- 

 trography of, 336 9 -39 3 . 



Apatite, mining of, 343 9 . 



Avalanche lake, shear-zone at, 328 4 . 



Avalanche pass, cliffs, 328 4 . 



Bald peak, gabbros, 331 9 . 



Barton hill, altitude, 342 8 , 346 2 ; fault- 

 scarp, 346 3 ; gneiss, 345 6 . 



mines, 34l 2 , 342 8 , 346 2 -47 7 ; besse- 

 mer ores, 340 8 . 



Bibliography of Adirondack geology, 

 325 5 -27 3 . 



Birkinbine, John, paper on Crystal- 

 line magnetite in Port Henry mines, 

 346«. 



Black schists, petrography of, 334 4 -36 9 . 



Blake, W. P., quoted, 343 9 . 



Bonanza-Joker bed, 344', 345 4 . 



Brinsmade shaft, 343 3 . 



Bullwagga mountain, mines on, 349 7 . 



Burt lot mines, 341 2 , 346 8 , 347 3 . 



Business prospects, 349 8 -50 1 , 351 s . 



Calciferous limestone, 330 9 , 331 7 , 332 2 , 

 339 4 . 



Cambro-Silurian sediments, 340 8 ; gen- 

 eral character, 330 7 . 



Campbell hill mines, 350 6 . 



Champlain Lake, geology of west 

 shore, 327 6 ; Potsdam sandstone, 331 7 . 



Chazy limestone, 330 9 , 332 s . 



Cheever dock, brecciated gneiss at, 



333 6 . 

 Cheever mine, 348 2 -49 5 ; gabbros 



underlying, 331 9 ; limestone, 334 5 , 



faults, 341 7 . 

 Contours, origin, 328 3 . 

 Coot hill mines, 340 9 , 349 7 . 

 Crowfoot pond, 340 9 . 

 Crystalline limestone, distribution, 



328 2 ; general character, 329 8 -30 3 . 

 Crystalline limestones of eastern Adi- 

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



326 5 . 

 Crystalline magnetite in Port Henry 



mines, paper on referred to, 346 6 . 

 Crystalline rocks, stratigraphy, 325 s , 



328 8 -29 4 . 



Derby, O. A., paper on magnetite 



ore districts of Jacupiranga and 



Ipanema, 351 9 . 

 Dikes, 331 9 , 339 5 , 341 7 ; remains in 



limestone, 330 2 , 336 6 ; near West 



Point, 336 4 . 

 Dip, distinguished from pitch, 342 7 . 

 Dome-shaped peaks, composition, 327 7 ; 



origin, 328 3 . 

 Drift, distribution, 328 6 . 

 Dynamic disturbances, evidence of, 



333 3 , 335 6 , 337 1 . 



Edwards, A. M., on Warren county 



marbles, 334 9 . 

 Elizabeth town, mines, 346 9 -47 1 . 

 Emmons and Hall, survey, 325 4 . 

 Ensign pond, 331 7 , 334 7 ; anorthosites, 



336 9 -37 4 . 



