22 



NEW YORK STATE MUSEUM 



lake; the Lehigh Valley and the New York, Ontario and Western 

 Railroads traverse the area underlain by glass sand at the east end 

 of the lake, and the latter railroad turns and runs along the north 

 shore, directly adjacent to the sand-bearing area on the north side 

 of the lake. The highways are excellent, and so far as the move- 

 ment of material is concerned the situation is ideal. 



Table i 





Per cent 

 SiOz 



Per cent 

 FezOs 



Per cent 

 AI2O3 



Per cent 

 CaO 



Per cent 

 BaO 



Per cent 

 Ti02 



Potsdam- Johnstown (good bed) 



Potsdam- Johnstown (poorer bed) 



Potsdam-Moira-Bangor, no. i 



98.84 

 96.83 

 99.22 

 98.99 

 95.08 

 98.82 

 95.45 

 99-71 

 99.53 

 98.32 

 98.46 

 98.68 



95.51 



99.51 

 98.56 



0.09 

 0.17 

 0.06 



O.IO 



0.24 

 0.17 

 0.12 

 0.08 

 0.18 

 0.20 

 0.26 

 0.27 



0.27 



0.21 

 0.41 



0.44 

 1. 18 

 0.46 

 0.73 

 3.27 

 0.52 

 3.04 



O.II 



0.34 



0.72 



2.35 



0.15 

 0.68 



0.04 

 0.04 

 0.02 

 0.05 

 0.13 

 0.04 

 0.03 

 0.02 

 0.04 

 0.03 



O.OI 



0.06 



Q.07 



0.05 

 0.07 



0.07 

 



0.02 

 



0.02 



...... 









Pctsdam-Moira-Bangor no. 3 .... 





Potsdam- Fort Ann, no. i 



0. II 



Oriskany sandstone, New York 



Oriskany sandstone, Pennsylvania 



Shawangunk no. i, Ellenville, N. Y 



Shawangunk no. 5, Accord, N. Y 



Shawangunk no. 6, Accord, N. Y 



Poughquag quartzite, Westchester co., 

 New York 



0.39 



Poughquag quartzite, Dutchess co„ 

 New York 





Oneida glass sand, Durhamville, N. Y. . 



0.07 



