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1. Methods of sampling and analyzing coal-mine dusts for incombustible content.

Creator Personal:
Greenwald, H. P. (Harold Putnam), 1893-, Selvig, W. A. (Walter Alfred), 1886-1972., Owings, C. W. (Clarence Watson), 1894-
Title:
Methods of sampling and analyzing coal-mine dusts for incombustible content.
Call Number:
P19471
Date:
1940
Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7113 (1940:July).

Subject Topical:
Coal dust--Sampling., Coal dust--Analysis.
All:
Coal dust--Sampling., Coal dust--Analysis.

2. Feasibility of coal ash from West Virginia coals.

Creator Personal:
Selvig, W. A. (Walter Alfred), 1886-1972.
Title:
Feasibility of coal ash from West Virginia coals.
Call Number:
P2960
Date:
1920
Description:
Journal article reprint from: Webster County Report, West Virginia Geological Survey, 1920.
Subject Topical:
Coal--West Virginia--Analysis., Coal ash., Combustion.
All:
Coal--West Virginia--Analysis., Combustion., Coal ash.