94 



NEW YORK STATE ]SIUSEUM 



Onondaga Coarse Salt Association, 

 65. 



Onondaga county, brick, 27; building 

 stone, 80; cement, 22; clay in- 

 dustry, 24, 25 ; crushed stone, 79 ; 

 tile and sewer pipe, 30; fireproof- 

 ing, 30; gypsum, 39, 41, 42; lime- 

 stone, 78, 81, 82; natural gas, 59; 

 pottery, 31, 32; salt industry, 7,65, 

 66, ^7. 



Onondaga limestones, 75, 78, 80. 



Ontario, mineral paint, 52. 



Ontario county, brick, 27; clay in- 

 dustry, 25; drain tile and sewer 

 pipe, 30; gypsum, 41; mineral 

 waters, 54; natural gas, 59; pot- 

 tery, 31. 



Ontario Iron Ore Co., 45, 46, 49. 



Ontario Talc Co., ^. 



Orange county, brick, 27, 28, 29; 

 clay industry, 24, 25 ; granite, 77. 



Orleans county, building stone, 85 ; 

 sandstone, 84, 86. 



Ossining, marble, 83. 



Oswego county, natural gas, 57, 59. 



Palisades, trap, 87. 



Paper, made from talc, 89. 



Paragon Plaster Co., 69. 



Pavilion field, 60. 



Paving blocks, from granite, 77 \ 



from sandstone, 84, 85, 85; from 



trap, 88. 

 Paving brick, 23, 24, 29. 

 Peekskill, emery, 2)1)- 

 Pekin, limestone, 80. 

 Peppel, S. v., cited, 69. 

 Petroleum, 8, 9-13, 15, 60-62. 

 Plattsburg, marble, 83. 

 Pomfret, natural gas, 59. 

 Porcelain, 32. 



Port Henry Iron Ore Co., 46. 

 Port Jefferson, sand-lime brick, 69. 

 Port Richmond, trap, 87. 

 Portland cement, 7, 9-13, 21, 22. 

 Potsdam sandstone, 84. 

 Pottery, 6, 9-13, 23, 24, 31^32. 

 Prairie Slate Co., 72. 

 Presbrey, O. S., 47. 

 Producers Gas Co., 58. 



Pyrite, 9-13, 62-63. 

 Pyrrhotite, 63. 



Quarry products, value, 7. 

 Quartz, 9^13. 



Queens county, clay industry, 24, 25; 

 terra cotta, 31. 



Railroad ballast, from limestone, 79. 



Ramapo Trap Rock Co., 88. 



Randolph, mineral paint, 52. 



Remington Salt Co., 6y. 



Rensselaer county, brick, 27, 29; 

 clay industry, 25; fireproofing, 30; 

 limestone, 81, 82; sandstone, 84. 



Retsof Mining Co., dy. 



Richfield Springs, 53, 54. 



Richmond county, brick, 27; clay in- 

 dustry, 24, 25 ; terra cotta, 31 ; 

 trap, 87. 



Ricketts & Banks, 18. 



Riprap, 75 ; from granite, 78 ; from 

 limestone, 79; from sandstone, 86. 



Road metal, from limestone, 79 ; 

 from trap, 88. 



Rochester, petroleum, 61 ; sewer 

 pipe, 30. 



Rochester Composite Brick Co., 69. 



Rock Glen Salt Co., 67. 



Rock salt, 7, (ij. 



Rockland county, brick, 27, 28, 29; 

 clay 'industry, 24, 25; crushed 

 stone, 77, 79; granite, 77 \ trap, 87. 



Rockland Lake, trap, 87. 



Roofing slate, 9-13, 70. 



Roofing tile, 30. 



Rosendale cement, 21. 



Rossie Iron Ore Paint Co., 52. 



Roxbury, mineral paint, 52. 



Rubble, 74, 75 ; from granite, 78 ; 

 from limestone, 79; from sand- 

 stone, 86. 



Ruedemann, Rudolf, cited, 47. 



Rutland-Florence Marble Co., "^2). 



St Josen, millstones, 51. 



St Lawrence county, hematite, 52; 

 limestone, 78, 80, 8t, 82; marble, 

 82; mineral waters, 54; pyrite, 63; 

 sandstone, 84; talc, 8, 88. 



