GEOLOGICAL SURVEY OF THE TERRITORIES. 183 



Per cent. 

 Second analysis : 



Water and volatile substances 54.00 



Ash 4.00 



Fixed carbon 42.00 



Total 100.00 



Third analysis : 



Water 16.00 



Volatile substances 38.00 



Ash 4.50 



Fixed carbon 41. 50 



Total 100.00 



Fourth analysis : 



Water 16.00 



Volatile substances 38. 00 



Ash 5.00 



Fixed carbon 41.00 



Total 100.00 



Fifth analysis : 



Water 16.00 



Volatile substances - 38. 00 



Fixed carbon 41.00 



Ash 5.00 



Total 100.00 



Average of five analyses : 



Water 16.00 



Volatile substances 38. 00 



Ash 4.50 



Fixed carbon 41. 50 



Total 100.00 



Bituminous coal from Spriggs's Mine, Weber Canon, Utah Territory. 



Water and volatile substances 50. 80 



Ash 3.60 



Fixed carbon 45. 60 



Total 100.00 



Bituminous coal from Evanstown, Union Pacific Railroad. — This coal 

 is black, (even in powder,) has a highly resinous luster, and a fracture 

 like the other coals of this class, irregular and conchoidal. It appears 

 better able to resist the action of the atmosphere than the other tertiary- 

 coals examined, and is not nearly so friable. Its specific gravity is 1.341. 



Per cent. 

 First analysis : 



Water % 6.00 



Volatile substances ' 38. 00 



Ash 7.50 



Fixed carbon ..,.. 49. 50 



100.00 



Second analysis : 



Water 5.50 



Volatile substances 37. 00 



