Methods of Elemental Analysis of Fossil Fuels.- Analysis of Oil Shale Products and Effluents Using a Multitechnique Approach.- Nuclear Methods for Trace Elements in Petroleum and Petroleum Products.- Trace Element Composition of Athabasca Tar Sands and Extracted Bitumens.- Uranium Content of Petroleum by Fission Track Technique.- Fast Neutron Activation Analysis of Fossil Fuels and Liquefaction Products.- Determination of Trace Element Forms in Solvent Refined Coal Products.- Comparison of Mainframe and Minicomputer Spectral Analysis Codes in the Activation Analysis of Geological Samples.- Application and Comparison of Neutron Activation Analysis with Other Analytical Methods for the Analysis of Coal.- An Automated Multidetector System for Instrumental Neutron Activation Analysis of Geological and Environmental Materials.- Modes of Occurrence of Trace Elements and Minerals in Coal: An Analytical Approach.- Development and Calibration of Standards for PNAA Assay of Coal.- On-line Nuclear Analysis of Coal and its Uses.- Analysis of Mineral Phases in Coal Utilizing Factor Analysis.- The Analysis of Inorganic Constituents in the Groundwater at an Underground Coal Gasification Site.- Application of PIXE, RBS and High Energy Proton Microbeams to the Elemental Analysis of Coal and Coal Waste.- Investigations of Mechanisms and Structures in Fossil Fuels.- Investigation of Coal Hydrogenation Using Deuterium as an Isotopic Tracer.- The Reaction of Carbon-14-Labeled Reagents with Coal.- Natural Permeability Reduction in Porous Media Due to the Presence of Kaolinite.- Research Methodology in Used Oil Recycling.- The Application of Photon Induced X-Ray Fluorescence for the Simultaneous Determinations of Cobalt, Nickel and Molybdenum in Hydrodesulfurization Catalysts.- Quantitative Electron Probe Microanalysis of Fly Ash Particles.- Spectroscopy and Asphaltene Structure.- Geologic Factors that Control Mineral Matter in Coal.- Structure Analysis of Coals by Resolution Enhanced Sollc<