Permissible electric cap lamps and ventilation in certain California mines and water-tunnel construction
By: by S.H. Ash and J.H. Rankin.
Contributors: Rankin, Joseph Holbrook, 1890-
Series: Bulletin (United States. Bureau of Mines) ;; 359
Publisher: U.S. G.P.O.
Published: 1932
Place of publication: Washington
Language: eng
Number of pages: 36
Subjects: Electric lamps, Portable.; Safety lamps.; Mine ventilation.; Tunnels -- California.; Tunnels -- Ventilation.; Mines and mineral resources -- California.
Other titles: Lamps and ventilation in California mines.
Notes: At head of title: U.S. Department of Commerce. R.P. Lamont, secretary. Bureau of Mines. Scott Turner, director.
Running title: Lamps and ventilation in California mines.