A book on pyelography by the successor of Guyon and Albarrán cannot help being of interest. After a brief but complete historical survey, Legueu discusses with his usual thoroughness and brevity the technic, accidents, results and uses in various conditions. He still favors for injection sodium bromid with a small percentage of mercuric oxicyanid for antiseptic purposes. Possibilities as well as limitations and dangers are explained with respect to a method that is properly called "one of the most recent and important urologic developments." A number of pyelograms illustrating different conditions appear at the end of the book. There is a fair, but representative bibliography, mostly from French sources, although there are a few references to both North and South American papers.