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1. State regulations pertaining to the use of internal-combustion engines in coal and metal mines and in tunnels.

Creator Personal:
Gleim, E. J. (Ernest J.), Ilsley, L. C. (Lee Clyde), 1880-
Title:
State regulations pertaining to the use of internal-combustion engines in coal and metal mines and in tunnels.
Call Number:
P19468
Date:
1938
Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7019 (1938:June).

Subject Topical:
Tunnels--Safety measures., Internal combustion engines--Safety measures., Mine safety--United States.
All:
Mine safety--United States., Tunnels--Safety measures., Internal combustion engines--Safety measures.

2. Some preliminary data on methods for allaying coal dust in tipples and cleaning plants.

Creator Personal:
Kingery, D. S.
Title:
Some preliminary data on methods for allaying coal dust in tipples and cleaning plants.
Call Number:
P19473
Date:
1940
Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7248 (1940:Aug.).

Subject Topical:
Mine safety--United States., Mine dust--United States.
All:
Mine dust--United States., Mine safety--United States.