Permissible explosives defined.

Other author Munroe, Charles E. (Charles Edward), 1849-1938.
Format Microform
Publication InfoWashington, D.C. : [publisher not identified], 1927.
Description2 pages ; cm.
Subjects

SeriesMines Bur. Info. Circ. No. 6051
General noteReuse of record except for individual research requires license from LexisNexis Academic & Library Solutions.
General note[On use in coal mining]
Citation/References note CIS Index to U.S. Executive Branch Documents, 1910-1932 Part 2
Reproduction noteJoyner- Microfiche. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 1997, 11 x 15 cm. (CIS US Executive Branch Documents : no. C22.11-6051)
Govt. docs number C 22.11:6051