196 



NEW YORK STATE MUSEUM 



Ontario Furnace Co., 106. 



Ontario Talc Co., 156, 



Orange county, apatite, 51; building 

 brick, 63, 64; clays, 61, 62; 

 granite, 134, 135; iron ore, 85, 

 86; limestone, 137, 140, 141; peat, 

 119; sandstone, 146, 148, 149. 



Oriskany sandstone, 149. 



Orleans county, bluestone, 152; lime- 

 stone, 137, 140, 141 ; marl, 109 ; 

 sandstone, 147, 148, 151. 



Orton, Edward, cited, 119, 121. 



Oscawana, marble, 143. 



Ossining, marble, 143. 



Oswegatchie series, 142. 



Oswego, sandstone, 148. 



Oswego county, glass sand, 129; 

 natural gas, 117, 118; sandstone, 

 147. 



Oswego sandstone, 148. 



Otisville, sandstone, 148. 



Otsego county, iron ore, 87; marl, 

 109. 



Oyster bay, clays, 57. 



Palisades, 153. 

 Palmer hill, iron ore, 98-100. 

 Parsons, A. L., cited, 82, 119, 120. 

 Pavilion, natural gas, 119. 

 Pavilion Natural Gas Co., 119. 

 Paving blocks, value of production, 



ISO, 151, 153. 

 Paving brick, manufacture, 60, 65. 

 Peale, Albert C, cited, 115. 

 Peat, 119-20. 

 Peat Koal Co., T19. 

 Peekskill, brick manufacture, 58. 

 Peekskill, emery, 68; granite near, 



134- 



Pennsylvania, millstones, 110. 



Perry, salt, 126. 



Peru Steel Ore Co., 98. 



Petroleum, 120-21 ; value of produc- 

 tion, 48, 49. 



Phoenix, natural gas, 117. 



Piffard, salt, 126. 



Pilling & Crane, 94, 159. 



Pine Island, granite, 134. 



Pine Plains, marl, 109. 



Pine Valley, sandstone near, 150. 



Pittsburg Plate Glass Co., 80. 



Plattsburg, brick manufacture, 58; 



marble, 144. 

 Pleasantville, marble, 143. 

 Pope Mills, graphite, yy. 

 Porcelain, manufacture, 59, 66; value 



of production, 47. 

 Port Gibson, gypsum, 80. 

 Port Henry, marble, 142; sandstone, 



146. 

 Port Henry Iron Ore Co., 83, 88, 



89, 90. 

 Port Jefferson, brick manufacture, 57. 

 Port Leyden, granite, 135. 

 Port Richmond, trap, 153. 

 Portage formation, 149, 150. 

 Portland cement, 54; manufacture, 



47, 108; value of production, 48, 49. 

 Potsdam, sandstone, 146. 

 Potsdam Red Sandstone Co., 146. 

 Potsdam sandstone, 145-46. 

 Potter-Brown Cement Works, 55. 

 Pottery, production, 59, 66-67; value 



of production, 47, 48, 49, 61 ; direc- 

 tory of producers, 168-69. 



Poughkeepsie, brick manufacture, 58. 



Pulaski, natural gas, 117. 



Putnam, B. F., cited, 105, 106. 



Putnam county, granite, 134, 135; 

 iron ore, 85, 86; pyrite, 123. 



Pyrite, 122-24; value of production, 



48, 49 ; directory of producers, 174. 



Quarries, directory, 161-87. 



Quartz, 124; value of production, 48, 



49; directory of producers, 170. 

 Queens county, terra cotta, fireproof- 



ing and building tile, 66. 



Randolph, mineral paint, 112. 



Red Hook, marl, 109. 



Redwood, sandstone, 146. 



Remington Salt Co., 125. 



Rensselaer county, building brick, 63, 

 64; clays, 62; fire brick and stove 

 lining, 65; limestone, 140, 141; 

 sandstone, 149 ; slate, 131 ; terra 

 cotta, fireproofing and building tile, 

 66. 



Rensselaer grit, 149. 



Retsof, salt, 128. 



Retsof Mining Co., 126. 



