The Races of Man: Differentiation and Dispersal of Man

Although radiology is one of the most recent branches in the world of science, yet during its brief existence of thirty-eight years it has become one of the basic structures in the realm of diagnosis and has a specific assignment from a therapeutic standpoint in the cure and alleviation of symptoms of diseases which formerly were considered incurable and beyond the scope of medical knowledge. To read of the enviable achievements in successfully surmounting the problems presenting the impossible is astounding and reveals the dramatic triumphs of this infant science. In this comparatively diminutive volume, which may be considered as a form of compendium, is presented a compilation of the history, development and achievements of this science in a more or less chronological order. The subjects are systematically arranged and the short chapters facilitate reading at odd moments. Each section is individual and complete per se and, though brief, is sufficiently detailed to serve as a working basis in its own field, a significant expression of its period and an important contribution to the science. At the end of each chapter is given a list of references and in many instances quite an extensive bibliography serving as a guide for those who are more interested in the subjects presented. It would only be necessary to peruse the index to appreciate the efficient manner in which this collection has fulfilled its requirements, The contributors are either pioneers or authorities in their respective divisions, and it is only through their assistance that such material could be condensed without omitting the salient features. This book comprises twenty-five chapters written in a scientific manner with the technical discussion not too remote from the practical application to medicine. Besides the historical and medical aspects the material effectively deals with the radiological relationships to its physical, chemical and biological properties. Although the purpose of this book was to limit itself in the application of radiology to medicine it has treated other subjects in which radium, roentgen and similar rays are applied and are being used in other departments of science. This volume would be valuable to any scientist and especially to the radiologist. MICHAEL D'AMICO.