This volume, a revised and enlarged edition, has been compiled from the material of many men. Its purpose is to show what radiology can do, to encourage medical men to resort to this means as an aid in diagnosis, and to help the inexperienced in reading roentgenograms. Only normal and abnormal subjects commonly seen in general practice are included. Accompanying each roentgenogram is an explanatory diagram or paragraph or both. Short medicolegal and anthropologic sections have been started in this volume. Physicians who have had little or no experience with roentgenograms will find this atlas useful.