INDEX 



Acid-proof brick, i6. 



Adirondack Mining & Milling Co., 

 26, 27. 



Adirondack Pulp Co., 70. 



Adirondack Pyrite Co., 52. 



Adirondacks, garnet, 25 ; graphite, 26; 

 hematite, zi \ 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, 63, 

 64; natural gas, 47; potteries, 2-^^% 

 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, ^J. 



American Gypsum Co., 28. 



American Pulp Co., 71. 



American Pyrites Co., 52. 



Anorthosite, 59. 



Arnold, magnetite, 30. 



Arnold hill, iron ore, 2)?>- 



Arnold Mining Co., 30, 2)'h: 



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, z^. 



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, 18-21 ; 

 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; clays, 17. 



Brown Clay Works, 22. 



Buffalo, furnace flux, 62. 



Buffalo Cement Co., 14. 



Building brick, see Brick. 



Building stone, 57-^9; value of out- 

 put, 7, 58; production of granite, 

 59, 60; production of limestone, 60, 

 61, 62, 62; 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. 



7.^ 



