The author first defines his subject from the practical point of view of the urologist as the complete or incomplete inability to perform the sexual act. In this he quotes Palazzoli and thus differs from O. Schwartz, who includes under impotence all anomalies of the psychophysiosexual sphere from the state of the individual's own amorous habits to the most serious perversions.
A brief sketch of embryologic development follows standard thought. A note on comparative anatomy is well presented, and several line drawings are included. A section on anatomy with diagrams in color fully orients the reader.
Normal physiology of the sexual act is discussed first under the head of the endocrine basis of sexual desire. Uretrorrhea due to Cowper's glands is mentioned, and much space is given to factors which assist in the production of an erection, such as psychosensory and dermovascular stimulation. This is followed by a consideration of