 | Robert Wilson Dron - Science - 1902 - 368 pages
...represented by 100 (calculated on the basis of a production of 13,000 cubic feet of gas and 1535.5 lbs- of sperm per ton, and having regard also to the value of the secondary products and the cost of the purification of the gas) th1s coal is equal to 51.74. The... | |
 | Geological Survey (U.S.) - Geology - 1906
...cannel coal represented by 100 (correlated on the basis of a production of 13,000 cubic feet of gas, 1,535.5 pounds of sperm per ton, and having regard also to the value of the secondary products and the cost of the purification of the gas), this coal is equal to 70.17. •'This... | |
 | William Clifton Phalen - Geology - 1908 - 158 pages
...eannel coal, represented by 100 (calculated on the basis of a production of 13,000 cubic feet of gas and 1,535.5 pounds of sperm per ton, and having regard...also to the value of secondary products and the cost »f purification of the SKIS), this coal is equal to 134.03. Of the IIunnewell canncl coal he says:... | |
 | William Clifton Phalen - Geology - 1908 - 158 pages
...main Lesmahagow cannel coal as 100 (calculated on a basis of a production of 13,000 cubic feet of gas and 1,535.5 pounds of sperm per ton, and having regard also to the secondary products and the cost of the purification of the gas) — Falling Rock caniiel is equal to... | |
 | Geological Survey (U.S.) - Geology - 1908
...inain Lesmahagow cannel coal as 100 (calculated on a basis of a production of 13,000 cubic feet-of gas and 1,535.5 pounds of sperm per ton, and having regard also to the secondary products and the cost of the purification of the gas) — Falling Rock cannel is equal to... | |
 | Geological Survey (U.S.) - Geology - 1908
...basis of a production of 13,000 cubic feet of gns and 1.53r>.r> iwinnds of sperm •*=r ton, and baring regard also to the value of secondary products and the cost of (unification of the gas), this coal Is equal to 134.03. Of the Hunnewell cannel coal he says : This... | |
 | United States. Bureau of Mines - Mines and mineral resources - 1909
...cannel coal, represented by 100 (calculated on the basis of a production of 13,000 cubic feet of gae and 1,535.5 pounds of sperm per ton, and having regard...products and the cost of purification of the gas) this coal is equal to 134.03. The superior character of the Boghead cannel coal is particularly well... | |
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Losmalmgow cnnnel coal, represented by 100 (calculated on the basis of production of 13.000 cubic feet of pas and 1,535.5 pounds of sperm per ton. and having regard also to the value of secondary products and the cost of purification of the gas), the... 