This edition appears six years after the first. The author aims to supply the clinician, who is not especially concerned with the technical side, with a knowledge of what radiology is capable of revealing to him. There are a large number of roentgenograms with descriptions and clinical notes. Normal plates are found on the left-hand page so as to be readily compared with abnormal plates on the right. The original roentgenograms have been presented to the Museum of the Royal College of Surgeons. The contributors include some of the leading medical and surgical specialists of Great Britain. The field covered includes normal bones and epiphysis, congenital abnormalities, fractures, inflammation of bones, tumors of bone, injuries and diseases of joints, and the nasal, alimentary, urinary, respiratory, nervous, vascular, thyroid and female generative systems and muscles. The author's silhouette roentgenogram was evolved with the object of correlating the clinical observations with those