The next-to-the-last volume of this valuable series covers drugs having an isoquinoline structure, i. e., alkaloids of anhalonium, cactus, protoberberine, aporphine, protopine, and cularine, as well as simple isoquinolines and the benzylisoquinoline, bisbenzylisoquinoline, and α-naphthaphenanthridine alkaloids. Two chapters are given to alkaloids of erythrophleum and of aconitum and delphinium, whose structures are not yet known. The chapters are written by experts in their fields. Several chapters include sections on pharmacology. As is the case with the other volumes in the series, there are bibliographies at the ends of the chapters, author and subject indexes, and clear structural formulas. The book is well produced.