INDEX 



Abrasive sand, 241 



Abrasives, 219 



Acme Cement Co., 41 



Adirondack province, 14 



Akron Natural Gas Co., 184 



Albany slip clay, 50 



Allegany Pipe Line Co., 205 



Almandite, 16 



Alpha Portland Cement Co., 41 



Alsen's American Portland Cement 



Works, 41 

 American Cement Plaster Co., 100 

 American Garnet Co., 83 

 American Glue Co., 83 

 American Graphite Co., 85, 87, 89 

 American Gypsum Co., 100 

 Amphibole, 150, 152 

 Amphibolite, 122 

 Anorthosite, 14, 15, 251, 252, 25,5 

 Apatite, 8, 15, 26-27, 106, 150 

 Arsenical ore, 28-29 

 Arsenopyrite, 17, 28 

 Art wares, 64 

 Asbestos, 30-32 

 Attica Natural Gas Co., 189 



Barium, 20, 218 

 Barnum, Richardson & Co., 138 

 Barrett Manufacturing Co., 73 

 Barton, H. H., & Son Co., 81 

 Barytes, 33-35 ; references, 35 

 Barytocelestite, 34, 218, 281 

 Basco Corporation, 294 

 Becraft limestone, 265, 272 

 Bedford Feldspar Co., 76 

 Beekmantown limestone, 259, 306 

 Bertie waterlime, 96, 99, 172, 225, 



226, 263 

 Biotite, 149, 151, 152, 153, I54 

 Black River formation 173, 259, 260 

 Black tourmaline, 153 

 Bluestone, 277 

 Borst, C. A., 131 

 Bowlder clay, 52 

 Brayman shales, 217, 282 



Brick, 51, 52, 54; building, 7, 9-1 1, 

 47, 54; ornamental, 47, 49, 52, 54; 

 •manufacture, 50, 55 



Brick-making region, 49 



Brockton Gas & Fuel Co., 178 



Buena Vista Oil Co., 205 



Buffalo Cement Co., 166, 181 



Buffalo Natural Gas Co., 181 



Buffalo Pottery, 63 



Building brick, see Brick 



Building sand, 235, 236-39 



Building stone, 20, 247, 249, 251, 260, 

 265, 266, 267, 270, 274 



Building tile, 52 



Burstones, 154 



Cady, J. L., 232 



Cady & Johnson, 232 



Cambrian limestones, 259 



Cambrian red slate, 157 



Camillus shale, 96, 225 



Canajoharie shales, 174 



Carbon dioxide, 35-36 



Catlin Oil, Gas & Mineral Cc, 194 



Catskill formation, 276 



Catskill series, 158, 197 



Cayuga Lake Cement Corporation, 42 



Cayugan group, 263 



Celestite, 218, 281, 282, 283 



Cement, 37-46 ; production of, 45 ; 



references, 46 

 Chalcopyrite, 302 

 Chateaugay Ore & Iron Co., 113 

 Chazy limestone, 259, 260, 271 

 Cheever Iron Ore Co., no 

 Chemical wares, 64 

 Chemung formation, 158, 172, 177, 



205, 265, 276; thickness, 172 

 Chemung group, 52 

 Chemung sandstone, 20, 171, 174 

 Chemung series, 166 

 China, 51 

 Chlorite, 213 

 Chromite, 25 



