Advances in the Biosciences 9 is a collection of presented papers on the International Conference on Prostaglandins, held in Vienna, Austria on September 25 to 28, 1972. The book consists of 114 chapters of various topics in the field of prostaglandins. The meeting touches on several main topics such as new active analogs of prostaglandins; effect of aspirin and indomethasin and other compounds relative to the study of the role of the prostaglandins in the living organism; and the evaluation of the various analytical methods for the determination of the extremely minute amounts of prostaglandin occurring in the living organism. Biologists, pharmacologists, endocrinologists, physicians, biochemists, and medical technologists will find the contents of this book invaluable.