182 GEOLOGICAL SUEVEY OF THE TERRITORIES. 



Third analysis : 



Per cent. 



Water 3.0 



Volatile substances 22. 



Ash 7.5 



Fixed carbon 67. 5 



Total 100.0 



Fourth analysis : 



Water and volatile substances 22. 



Ash 7.5 



Fixed carbon 70.5 



Total 100.0 



Fifth analysis : 



Water and volatile substances 23. 



Ash 7.5 



Carbon , 69. 5 



Total 100.0 



* Sixth analysis, (F. P. :) 



Water , 2.25 



Volatile substances 20. 75 



Ash 6.40 



Fixed carbon 70. 60 



Total 100.00 



Seventh analysis, (F. P. :) 



Water 3. 75 



Volatile substances 21. 25 



Ash 6.00 



Fixed carbon 1 68. 00 



Total 100.00 



Average of seven analyses : 



Water 3.00 



Volatile substances 20. 85 



Ash 7.23 



Fixed carbon 69.09 



Total 100.17 



Of sulphur 0.72 per cent, was obtained. 



Bituminous coal from Mar •slialVs property near Boulder City, Colorado 

 Territory. — This coal is black, (in powder dark brown,) and when ex- 

 posed to the atmosphere friable, as are all of these tertiary coals. Its frac- 

 ture is conchoidal and the luster of the smooth surfaces of fracture 

 resinous. 



Specific gravity 1. 412 



Weight in air 595. 06 



Weight in water .' 173.08 



First analysis : 



Per cent. 



Water 16.00 



Volatile substances 38. 00 



Fixed carbon 42. 00 



Ash , 4.00 



Total 100.00 



' The analyses marked F. P. -were made by ILv. Franklin Piatt, jr. 



