Geology of the Mary Lee Group of Coalbeds, Black Warrior Coal Basin, Alabama

Report of Investigations: no.7381 to date

Direct Method Determination of the Gas Content of Coal: Procedures and Results, Issues 8501-8520

The Diffusion Flame in Free Convection: Buoyancy-induced Flows, Oscillations, Radiative Balance, and Large-scale Limiting Rates, Issues 8261-8280