This monograph is essentially of the usual type. The material is presented without too much attention to the mechanisms for the various electrocardiographic complexes encountered in normal and diseased states. The illustrations are fairly good. Some of the more recent publications on electrocardiography have not been included, an omission most probably due to the war. This monograph is not to be particularly recommended except as a source of information for those who are curious about the manner in which electrocardiography is practiced and taught in France.