INDEX 



Acid-proof brick, i6. 



Adirondack Mining & Milling Co., 

 26, 2"]. 



Adirondack Pulp Co., 70. 



Adirondack Pyrite Co., 52. 



Adirondacks, garnet, 25 ; graphite, 26; 

 hematite, yi \ magnetite, 30; mar- 

 ble, 64 ; pyrite, 52 ; titaniferous mag- 

 netite, 30, 34; trap, 68. 



Agalite Fibre Co., 70. 



Akron, cement industry, 13. 



Akron Cement Works, 14. 



Akron Gypsum Co., 28. 



Alabama, gypsum, 28. 



Albany county, bluestone, 68; build- 

 ing brick, 18, 20; clays, 16, 17; 

 crushed stone, 62 ; drain tile and 

 sewer pipe, 21 ; fire brick and 

 stove lining, 21 ; limestone, 61, dz, 

 64; natural gas, 47; potteries, 23; 

 terra cotta, fireproofing and build- 

 ing tile, 21. 



Algonquin Red Slate Co., 45. 



Allegany county, building brick, 18; 

 clays, 17; natural gas, 46, 48; pe- 

 troleum, 50; terra cotta, fireproof- 

 ing and building tile, 21. 



Allegany Pipe Line Co., 51, 



Alvord, E. B. & Co., 28. 



Amenia Co., 30. 



American Glue Co., 25. 



American Graphite Co., 26, 27. 



American Gypsum Co., 28. 



American Pulp Co., 71. 



American Pyrites Co., 52. 



Anorthosite, 59. 



Arnold, »iagnetite, 30. 



Arnold hill, iron ore, ■^Z- 



Arnold Mining Co., 30, 33. 



Arsenical ore, 10-12; analysis, 11. 



Arsenopyrite, 10, 12. 



Asbestos Pulp Co., 70. 



Ashley, Dominic, 25. 



Ausable Forks, monumental stone, 

 59- 



Barton, H. H. & Son Co., 25. 



Beck, L. C, cited, 12, 2>^. 



Bedford, feldspar, 24; quartz, 52. 



Benson mines, 6, 31. 



Blue Corundum Mining Co., 24. 



Bluestone, 66, 68; value of produc- 

 tion, 57, 67. 



Bolivar, petroleum, 51. 



Borst, C. A., iron mine, 30, 42, 43, 

 44. 



Bradford, Pa., petroleum, 51. 



Brick, number made, 6; prices, 20- 

 21; average price received, 19; 

 production, 8, 9, 10, 14, 15, 18-^1 ; 

 value of production, 6, 8, 9, 10, 16, 

 18-21. See also Sand-lime brick. 



Bridgeport Wood Finishing Co., 52. 



Briggs, E. F., analysis, 65. 



Brinsmade, Robert B., cited, 37. 



Broome county, bluestone, 68; 

 building brick, 18; cla3'S, 17. 



Brown Clay Works, 22. 



Buffalo, furnace flux, 62. 



Buffalo Cement Co., 14. 



Building brick, see Brick. 



Building stone, 57^69; value of out- 

 put, 7, 58; production of granite, 

 59, 60; production of limestone, 60, 

 61, 62, 63; production of sand- 

 stone, 66, 67. 



Building tile, see Tile. 



Burhans, W. M., 22. 



Cady & Vandenbergh, 22. 



Caledonia mine, 37-39. 



Camillus shale, 27. 



Capac, Mich., peat manufacture. 50. 



Carbon, dioxid, 12-13. 



Carbonate, 29. 



Catskill series, 45. 



73 



