592 



NEW YORK STATE MUSEUM 



Plattsburg, limestone quarries, 437 1 ; 



clays, 500 4 . 

 Pleasantville, marble quarries, 430 7 . 

 Polly mine, 538 7 . 



Pond-Eddy, bluestone quarries, 404 4 . 



Port Chester, road metal quarries, 449 5 . 



Port Ewen, clays, 499 2 . 



Port Henry, sandstone quarry, 391 8 ; 

 marble quarries, 432 8 ; iron mines, 

 533 6 , 534 7 -35 2 ; output of iron in 1888, 

 535 4 . 



Port Jervis, bluestone quarry, 415 5 . 



Port Kent, clays, 500 1 . 



Portage bluestone co., 407 8 ; tests of 



stone, 407 7 . 

 Portage group, sandstones, 388 9 -89 6 ; 



quarries, 400 8 -8 9 . 

 Porter, W. , quarries, 414 8 . 

 Portland cement, 519 5 , 528 B . 

 Potsdam red sandstone co., quarries, 



392 6 . 



Potsdam sandstone, 383 6 -84 3 ; analysis 

 and tests, 392 8 -93 6 ; durability, 393 3 ; 

 iron ore deposits, 540 2 ; quarries, 

 391 5 -94 3 ; quarries at Potsdam, 392 5 - 

 93». 



Precambrian formations of New York, 

 366 3 . 



Precious metals in New York, 579 4 . 

 Prospect, limestone quarries, 426 8 -27 2 , 



439 8 -40 6 . 

 Puff, Nelson, quarry, 419 7 . 

 Putnam, B. F., paper on iron ores, 



528 7 . 



Putnam county, study of rocks in, 

 366 3 ; granite quarries, 377 1 ; marble 

 quarries, 425 5 , 431 3 ; iron ores, 531 8 , 

 532 1 . 



Pyrite, localities producing, 579 6 . 



Q,uarrymen, directory of, 451-93. 

 Quartz, 552 5 . 



Quaternary formations, clay deposits, 

 496*. 



Ramapo, granite quarry, 377*. 

 Randall & Underwood, quarry, 417 8 - 

 18*. 



Randolph, clays, 497 9 . 



Red hematites, see Hematites. 



" Red horse," 400 3 . 



Red sandst' «ne, see New red sandstone. 

 Regents, list, 362. 



Reidsville, bluestone quarries, 402 2 . 



Reilly, William, quarries, 442 6 . 



Rensselaer county, sandstone quarries, 

 394 7 ; slate quarries, 421 2 . 



Retsof salt mines, 545 3 . 



Rhinebeck, sandstone quarries, 894 6 . 



Richburg, oil wells, 558 2 , 559 7 . 



Ries, Heinrich, work for museum, 

 366 4 ; road metal, 448-50. 



Road metal, 448-50. 



Rochester, Monroe co. , sandstone, 897 3 ; 

 limestone quarries, 447 4 . 



Rochester, Ulster co., bluestone quar- 

 ries, 401 6 , 402 6 . 



Rock City, oil wells, 560 s . 



" Rock ore," 540 8 . 



Rock salt, geologic occurrence, 548 9 ; 

 of Genesee valley, 545 2 . 



Rockland, Sullivan co. , bluestone quar- 

 ries, 418 3 . 



Rockland county, granite quarry, 377 2 ; 

 Triassic formation, 390 6 -91 B ; sand- 

 stone quarries, 419 6 ; iron ores, 532 1 . 



Rogers, J. & J., iron co., 535 5 . 



Rome, sandstone quarries, 395 8 . 



Rondout, sandstone quarries, 401 6 ; 

 bluestone market, 404 8 ; bluestone 

 quarries, 415 2 . 



Rossi, August, experiments with titan- 

 iferous ores, 537 4 . 



Rossie hematites, 538 8 . 



Round Island, granite quarry, 377 6 . 



Roxbury , sandstone quarries, 401 9 , 415 1 ; 

 flagstone quarries, 404 5 . 



Rubtle stone, 384 8 . 



St Johnsville, limestone quarries, 439 5 . 



St Lawrence county, clays, 497 8 ; hema- 

 tite ores, 537 7 -38 7 ; limestone quar- 

 ries, 441 9 -42 3 ; marble quarries, 431 5 - 

 32 5 ; sandstone quarries, 392 5 -94 3 ; 

 Potsdam sandstone, 384 1 ; talc, 556 6 . 



St Lawrence valley, limestones, 427 ! ; 

 limestone quarries, 441 9 -42 3 . 



Salem, slate quarries, 421 5 -22 1 . 



Salina group, distribution in New 

 York, 545 8 -48 8 ; four deposits, 546 2 - 

 47 8 ; color of shales, 547M8 3 . 



