The purchasing of coal under government and commercial specifications on the basis of its heating value, with analyses of coal delivered under government contracts
By: Dwight T. Randall.
Contributors: Geological Survey (U.S.)
Series: United States. Geological Survey. Bulletin -- no. 339; Geological Survey bulletin -- 339..
Publisher: Govt. Print. Off.
Published: 1908
Place of publication: Washington
Language: eng
Number of pages: 27
Subjects: Coal.; Coal -- Testing.