Tight, flat and square book. Spine creased, cupped. Pages lightly toned. Light edge weaer. Illustrated. The young natural science of geomorphology--the study of the form of the ground--is much less forbidding than its name. It is developing fast, already promises to achieve some independence from both geology and of physical geography. In this book, a professional geomorphologist tells how knowledge in this field is advancing, examines some fo the hotly disputed problems which have to be solved, and discusses the process by which construction and erosion affect the physical landscape. Among the topics receiving attention are the weakening of rocks by weathering, their removal by the forces of erosion, the cyclic development of the land-surface., the evolution of river=systems, the effects of volcanic action and of glaciers, and the surface forms of deserts.