This is a welcome addition to the subject of the application of radiography and especially of pyelography in the diagnosis of disease of the urinary tract. It is seldom that so much valuable information is so tersely presented. The book fills a gap because it is impossible in the ordinary textbooks or systems of urology to devote much space to the reproduction of films representing every possible phase of normal and pathologic conditions in this special field. An excellent and detailed description of the preparation of the patient is followed by a chapter on the various diagnostic methods which supplement plain radiography. The superiority of pyelography and similar procedures for filling the ureter, bladder and urethra with opaque solutions are clearly shown. Stress is laid on the importance of familiarity with normal conditions, and a number of pyelograms are shown to illustrate the many variations of the normal renal pelvis.