Volume 3 is in three parts: “Atlantic Coast Basins,” edited by Helmut H. J. Geldsetzer; “Paleogeography and Paleo­tectonics,” edited by Walter W. Nassi­chuk; and “Sedimentology and Geochemistry,” edited by Edward S. Belt and Roger W. Macqueen. The three sections combined contain more than 60 essays. Some of the essays are “Correlation of Carboniferous Tec­tonostratigraphic Zones in Europe and America” by J. W. Skehan, S. J., and N. Rast; “Geologic Development and Eco­nomic Evaluation of the Sydney Coal Basin, Nova Scotia, Canada” by Peter A. Hacquebard; “Carboniferous Paleogeog­raphy and Tectonics of Australia” by John Roberts; “Carboniferous Paleoge­ography and Geotectonics in Japan” by Masao Minato and Makoto Kato; “Lo­wer Pennsylvania (Pottsville to Cone­maugh) Alluvial to Delta-Plain Facies Shift Through Time, Central Appalach­ians” by Mark W. Presley and Alan C. Donaldson; “Changing Concepts of Midcontinent Pennsylvanian Cyclo­thems, North America” by Philip H. Heckel; and “Flint-Clay Facies in Penn­sylvanian-Age Rock of Missouri” by W. D. Keller.