Search U.S. government technical reports digitized or harvested by TRAIL.
Curves for the classification of coal
The agglomerating index of coal
Concentration of sulfur compounds in city air
Sulfur in the products of combustion of fuels
Effect of sulfur compounds in the air on various materials
Constancy of B. t. u. value of "pure" coal
The various B.T.U. values of a coal
Tests of bituminous-anthracite mixtures, on industrial stokers