112 NEW YORK STATE MUSEUM 
Oneida county, brick, 19; clay indus- 
try, 17; core sand, 61; fireproofing, 
23; glass sand, 62; limestones, 71, 
72, 73, 78 
Onondaga Coarse Salt Association, 56 
Onondaga county, brick, 19; building 
stone, 76; cement, 12; clay indus- 
try, 16, 17; crushed stone, 76; gyp- 
sum, 34: limestone, 72, 73, 75, 76, 
77, 970. marl, 74- naturals eas) 45; 
46, 47; salt industry, 54, 55, 56; 
stoneware clays, 25 
Onondaga limestone, 45, 73, 76 
Onondaga Pottery Co., 23 
Ontario Center, iron ore, 38 
Ontario county, brick, 19; clay indus- 
try, I7; mineral waters, 42; natural 
gas, 45, 46, 47. rock salt, 57 
Ontario Iron Ore Co., 38 
Ontario Talc Co., 99 
Opalescent glass, 27 
Orange county, brick, 19, 20, 22; clay 
industry, 16, 17; limestone, 73; 
sandstone, 92 
Orchard Park, natural gas, 48 
Oriskany Falls, limestone, 75 
Oriskany sandstone, 73 
Orleans county, limestone, 72; sand- 
stone, 92, 94, 95 
Ornamental stone, 72 
Oswegatchie river, iron ore, 39; talc, 
98 
Oswego county, natural gas, 45, 46, 47 
Otisville, sandstone, 92 
Otsego county, sandstone, 93 
Palisades, trap, 96 
Palisades Park, 97 
Pamelia limestone, 71 
Paragon Plaster Co., 63 
Pass and Seymour, 24 
Pavilion Natural Gas Co., 46 
Paving blocks, sandstone, 92, 94, 95, 
06 
Paving brick, 14, 15, 22 
Peekskill, emery, 25; granite, 67 
Pekin, quarries, 72, 75 
Perry, rock salt, 57 
Petroleum, 7, 9, 10, 48-51 
Phoenix, natural gas, 46 
Piffard, salt, 57 
Pig iron, 6 
Plattsburg, limestone, 71, 72; marble, 
80 
Porcelain, 14, 23, 24 
Port Henry, iron ore, 38; limestone, 
Fit 
Port Henry Iron Ore Co., 38 
Port Jefferson, sand-lime brick, 63 
Portage sandstone, 45, 93 
Portland cement, 7, 9, 10, II, 12, 72, 
73, 74 
Portland Point, 35, 73 
Potsdam sandstone, OI 
Pottery, 6, 9, 10, 15, 16, 23-24 
Poughquag quartzite, 88 
Producers Gas Co., 45 
Pulaski, natural gas, 47 
Putnam county, iron ore, 39; marble, 
87 
Pyrite, 8, 9, 10, 52 
Quarry materials, value of, 6 
OuarizO) 104 1423 
Queens county, clay industry, 17; 
terra cotta, 23 
Red earthenware, 24 
Red House, natural gas, 48 
Redwood, sandstone, 91 
Remington Salt Co., 57 > 
Rensselaer county, brick, 19, 20; clay 
industry, 17; fire brick and stove 
lining, 22; fireproofing, 23; lime- 
stone, 77, 78 
Retsof, salt, 56 
Retsof Mining Co., 57 
Richburg, petroleum, 51 | 
Richfield Springs, 41 
Richmond, trap, 97 
Richmond county, brick, 19; clay in- 
dustry, 17; fire brick and stove lin- 
ing, 22; terra cotta, 23 
Riparius, garnet, 30 
Riprap, from granite, 66; from lime- 
stone, 74; from sandstone, 95 
Road metal, limestone, 73; trap, 96. 
See also Crushed stone 
Rochester, brick, 13; limestone, 72; 
marble, 85; petroleum, 49; sand- 
stone, 92, 95 : 
