The purchase of coal under government and commercial specifications on the basis of its heating value. With analyses of coal delivered under government contracts.

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.), ProQuest (Firm)
Format:	Government Document eBook
Language:	English
Published:	Washington : [publisher not identified], 1908.
Series:	United States congressional serial set.
Subjects:	Geological Survey (U.S.) Coal mines and mining. Heating. Electronic books.
Online Access:	Connect to the full text of this electronic book

Description
Item Description:	Record is based on bibliographic data in ProQuest U.S. Serial Set Digital Collection (last viewed Dec. 2009). Reuse except for individual research requires license from ProQuest, LLC. Electronic resource.
Physical Description:	1 online resource.