112 



NEW YORK STATE MUSEUM 



Ontario Center, iron ore, 38 



Ontario county, clay industry, 15; 

 natural gas, 48; pottery, 21; rock 

 salt, 60 



Ontario Iron Ore Co., 38 



Ontario Talc Co., 92, 97 



Orange county, brick, 17, 19; clay 

 industrj^ 15; granite, 72, 76; lime- 

 stone, 80; molding sand, 62; sand- 

 stone, 87 



Orleans county, limestone, 79; sand- 

 stone, 87, 89 



Ossining, marble, 85 



Oswego county, natural gas, 48 



Otisville, sandstone, 87 



Otsego county, limestone, 79 ; sand- 

 stone, 88 



Ox Bow, pyrrhotite, 55 



Palisades, crushed stone, "^2 ; trap, 



64, 90 

 Palisades Park Commission, 91 

 Pamelia limestone, 78 

 Paragon Plaster Co., (i2> 

 Pavilion Natural Gas Co., 47 

 Paving blocks, sandstone, 87, 89 

 Paving, brick, vitrified, 14, 20; prices, 



20 

 Peekskill, emery, 22, 23 ; granite, 72, 



Pegmatite, 23 



Pekin, quarries, 79 



Perry, rock salt, 60 



Petroleum, 7, 9, 10, 49-52 



Phoenix, natural gas, 48 



Picton Island Red Granite Co., 68 



Piffard, salt, 59 



Pitcairn, granite, 69 



Plaster of paris, 7 



Plattsburg, limestone, 78. 79 ; marble. 



85 

 Pleasantville, marble, 85 

 Pochuck mountain, quarries, '](i 

 Popes Mills, graphite, 34 

 Porcelain, 21, 22 

 Port Henry, iron ore, 40; limestone, 



78 

 Port Henry Iron Ore Co., 38, 39 

 Port Jefferson, sand-lime l:)rick, 62, 



Portage sandstone, 87, 88 

 Portland cement, 7, 9, 10, 11, 12, 80 

 Portland Point, limestone, 80 

 Potsdam sandstone, 86 

 Pottery, 6, 9, 10, 13, 14. 21, 24 

 Producers Gas Co., 46 

 Pulaski, natural gas, 48 

 Pyrite, 8, 9, 10, 52-55 

 Pyrites, 54 

 Pyrrhotite, 53, 55 



Quarry materials, value of, 7 



Quartz, 9, 10 



Queens county, clay industry, 15; 



glass sand, 62 ; molding sand, 62 ; 



pottery, 21 ; terra cotta, 21 



Randolph, mineral paint, 41 



Red slate, 41 



Redwood, sandstone, 86 



Remington Salt Co., 60 



Rensselaer county, brick, 17, 19; clay 

 industry, 15 ; fire brick and stove 

 lining, 20; fireproofing. 20; lime- 

 stone, 83, 84; molding sand, (i2 



Rensselaer Falls, pyrite. 55 



Retsof, salt. 59 



Retsof Mining Co.. 59 



Richfield Springs, 42, 43 



Richmond, trap. 90 



Richmond county, brick. 17; clay in- 

 dustry, 15 ; fire brick and stove 

 lining, 20; serpentines, 72; terra 

 cotta, 21 



Riparius, garnet, 30 



Riprap, from granite, 66 ; from lime- 

 stone, 81 ; from sandstone, 8^;) 



Road metal, trap, 90. Sec also 

 Crushed stone 



Rochester, limestone, 79 ; petroleum, 

 50 ; sand-lime brick. 6^ ; sandstone, 



87 

 Rock Glen Salt Co., 59 

 Rock salt. 7, 56, 60 

 Rockland county, brick, 17. 19; clay 



industry. 15 ; crushed stone, 82 ;. 



limestone, 82; trap, 91 

 Rondout, quarry, 80 

 Rondout limestone, 79 



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