Summary Report on Public Samples Received 1949-50, Trace Elements Section Washington Laboratory, Geochemistry and Petrology Branch

A Colloidal Method for the Concentration of Carbonaceous Matter from Rocks

Degasification of the Mary Lee Coalbed Near Oak Grove, Jefferson County, Ala: By Vertical Borehole in Advance of Mining

Hydraulic Stimulation Increases Degasification Rate of Coalbeds

The Association of Uranium with Carbonaceous Materials on the Colorado Plateau

Status of Investigations on the Geochemistry and Mineralogy of Uraniferous Lignites

Geologic Factors Causing Roof Instability and Methane Emission Problems: The Lower Kittanning Coalbed, Cambria County, Pa

Creating a Safer Environment in U.S. Coal Mines: The Bureau of Mines Methane Control Program, 1964-79

Longwall Gob Degasification with Surface Ventilation Boreholes Above the Lower Kittanning Coalbed

Cleat in Bituminous Coalbeds

Effects of Destructive Distillation on the Uranium Associated with Selected Naturally Occurring Carbonaceous Substances

Water Infusion of Coalbeds for Methane and Dust Control

Creating a Safer Environment in U.S. Coal Mines: The Bureau of Mines Methane Control Program, 1964-79

Longwall Gob Degasification with Surface Ventilation Boreholes Above the Lower Kittanning Coalbed

Criteria for Abandoned Mine Reclamation: Regional Planning to Develop Project Guidelines in the Blacklick Creek Watershed, Pennsylvania

Commercial-quality Gas from the Multipurpose Borehole Located in the Pittsburgh Coalbed

Methane Emission from U.S. Coal Mines in 1973: A Survey: a Supplement to IC 8558

Methane Control in United States Coal Mines: 1972

Water infusion of coalbeds for methane and dust control

Investigation of Fire and Explosion Accidents in the Chemical, Mining, and Fuel-related Industries: A Manual, Issues 678-688