First national mine-safety demonstration, Pittsburgh, Pa., Oct. 30 and 31, 1911; with chapter on explosion at experimental mine.

Bibliographic Details

Corporate Author:	United States. Department of Commerce
Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1912.
Series:	Mines Bur. Bull. No. 44 (2nd ed., rev.)
Subjects:	Coal mines and mining. Mine accidents. Pittsburgh (Pa.) Electronic books.
Online Access:	Connect to the full text of this electronic document