Paperback. 1st p/b edn. The first full-length English language study of the murders, praised at the time for its presentation of the facts in the case. In two parts: Part One Fact; Part Two Theory. The author was regarded as the first 'Ripperologist' with his Dr. Stanley theory. 192pp. mass market p/back. With the usual browned pp., a Vg. copy of a scarce Jack the Ripper title.