 Fi2 1.46 1.60 1.46 1 36 1.42 1.29 1 21 1.38 1.24 1.16 The Rock Springs coal as a locomotive fuel or steam coal has few superiors in the West. It burns under a forced draft without heavy sparking and is a quick steamer, leaving only a small quantity of...  Bulletin of the United States Geological Survey - Page 141by Geological Survey (U.S.) - 1910Full view - About this book
 | United States - 1909 - 520 pages
...57.46 an Springs coal, as a locomotive fuel or steam coal, has few superiors in the West. It operates under a forced draft without heavy sparking and is a quick steamer, leaving but little ash. In this respect it differs decidedly from some of the " Upper Laramie " coals of Carbon... | |
 | Coal - 1910 - 216 pages
...brake horsepower: Commercially available . . . 1.72 1. Fi2 1.46 1.60 1.46 1 36 1.42 1.29 1 21 1.38 1.24 1.16 The Rock Springs coal as a locomotive fuel or...mining on all these coal beds. During the summers of 1 907 and 1 908 two mines were opened on coal beds of the Almond and Black Buttes groups and coal is... | |
 | Marius Robinson Campbell - Coal - 1910 - 616 pages
...82 1 46 1.60 1.42 1 38 Per brake horseirower: Commercially available 1.46 1.29 1.24 1 36 1 "1 1 16 The Rock Springs coal as a locomotive fuel or steam...mining on all these coal beds. During the summers of 1 907 and 1 908 two mines were opened on coal beds of the Almond and Black Buttes groups and coal is... | |
 | United States. Bureau of Mines - Mines and mineral resources - 1913 - 1226 pages
...The Rock Springs coal, as a locomotive fuel or steam coal, has few superiors in the West. It operates under a forced draft without heavy sparking and is a quick steamer, leaving but little ash. For chemical analyses of this coal see part I of this bulletin, p. 314; also US Geol.... | |
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