NEW YORK STATE MUSEUM 



Labradorite, 494 s , 495 3 , 498 2 , 498 s , 

 498 s , 49s 9 , 499* 499 7 , 500 5 , 500 8 , 

 501 3 . 



Lawson, A. C, cited, 501 9 . 

 Limestone, 479 2 , 479 6 . 

 Limonite, 504 5 . 

 Lower base-level, age of, 469 4 . 



Magnetite, 494 1 , 494 7 , 49s 4 , 496 s , 496 9 , 

 498 s , 498 s , 504 5 ; nontitaniferous, 

 505 8 -6 7 ; titaniferous, 499 7 , 500 6 , 501 3 , 

 501 7 , 505 5 . 



Mica schist, 479 s , 48o 9 -8i 7 . 



Microcline, 494 s , 494 5 , 494 8 , 495 3 , 

 496 7 , 497*. 



Microperthite, 495 7 , 496 s , 496°, 497 4 , 

 497 T , 497 s , 498 1 , 498 s . 



Muscovite, 496 s . 



Newland, D. H., work on the geol- 

 ogy of the Adirondacks, 46s 6 . 

 Norites, 500*. 



Oligoclase, 495 s , 497*. 

 Orthoclase, 494 s , 494 9 , 496 s , 496 s , 497 4 , 

 498 8 - 



Paleozoic formations, 490 3 -9i 5 . 



Paradox Lake quadrangle, location 

 and topography, 464 1 -65 4 ; physiog- 

 raphy and glaciology, 46s 5 -78 4 . 



Pegmatites, 487 6 -89 7 , 493 9 . 



Peneplains, 468 1 . 



Petrography, 492 9 -503 6 ; of sedimen- 

 tary rocks, 493 8 -95 9 ; of igneous 

 rocks, 495 9 ~50i 9 . 



Pharaoh lake, 477 2 . 



Physiography of the Paradox Lake 

 quadrangle, 465 5 ~78 4 . 



Piedmontite, 494 1 , 494 s , 494 s . 



Plagioclase, 494 s , 494 s , 496 6 . 496 s , 

 498 s , 499 4 - 



Porphyritic gneiss, 496 s . 



Potsdam sandstone, 466 s , 4 78 6 , 490 3 . 



Preglacial erosion history, summary 

 of, 468S-69 



Putnam creek valley, 466 s . 



Pyrite, 495 s , 495 s , 504 s - 



Pyroxene, 496 , 497, 499 . 501 3 , 

 501 . 



Quartz, 494* , 494s, 4946, 4948, 494 9. 

 495 1 , 495 3 , 495 6 , 49&, 496 9 , 497 , 

 497*. 497 7 > 497 9 , 498 1 , 498 2 . 



Quartzite, graphitic, 479 s ; shalv,479 2 . 

 483 2 - 



Quartzose gneiss, summary and con- 

 clusions, 502 1 -3 5 . 



Rutile, 495 9 . 



Saussurite, 494 7 

 Schroon valley, 466 s , 4 7 7 2 . 

 Sedimentary rocks, petrography of, 



493 8 -95 9 - 

 Shaly quartzite, 4832. 

 Shear zones, 492 2 . 



Sherman Corners, valley near, 466 s . 



Sillimanite gneiss, 479 2 , 48i 7 -83 1 ; 

 description, 495 6 . 



Smyth, C. H. jr, work on the geology 

 of the Adirondacks, 463 4 ; men- 

 tioned. 483"; cited, 484 s . 



Spinel, 498 s . 



Stratigraphic relations, summary of, 

 483 s - 



Syenite, 4 84 8 -85 5 , 493 9 , 495 9 , 503 2 ; 

 description, 497 5 ~98 4 ; summary and 

 conclusions, 502 ! -3 5 . 



Ticonderoga, 472 5 ~77 1 . 

 Titaniferous iron ores, 500 6 . 

 Titaniferous magnetite, 499", 500 6 , 



501 3 , 501 7 , 505 5 . 

 ; Titanite, 498 s , 500 5 . 

 ! Topography of the Paradox Lake 



quadrangle, 464 1 -6s 4 . 

 Towner pond, 472 1 . 

 Trap, 493 9 . 

 Trap dikes, 489 s . 

 Trenton limestone, 490 9 -9i 5 . 

 Trout brook valley, 466 7 , 476 6 . 



; Van Hise, cited, 488 s . 



Weinschenk, Ernst, cited, 504 6 . 

 I Whortleberry pond, 47 7 2 . 

 ; Williams, E. H., cited, 4 88 8 . 



Williams, G. H., cited, 498 , 501 8 . 

 I Wolf pond, 477 2 . 



I Zeolites, 494 9 , 496 7 . 



I Zircon, 49s 4 , 495 s , 496 s , 498 s , 498 s . 



