Prostagtandin Abstracts Volume II contains abstracts of the significant scientific Iiterature published in 1971, 1972, and 1973 on the role of prostaglandins in human reproduction. Of the more than 4000 articles which were published between 1971 and 1973 and deal with prostaglandins, endogenous and exogenous, in mal es and females, nearly 1100 involve human reproduction. Prostagtandin Abstracts, Volume I (Plenum Publishers, 1973) contains abstracts of all articles on prostaglandins published between 1906, when the action of these compounds was first noted, and 1970, when clinical research with these compounds was weil underway. Clinical use of prostaglandins during the 1960s proved safe but provided evidence of troublesome side effects. Du ring the 1970s, the development of new analogues, various protocols for international testing, and improved routes of administration indicates that prostaglandins still hold promise as a useful drug in the management of fertility. Research into potential contraceptive and other clinical uses of prostaglandins continues to be an exciting and expanding field of fundamental and clinical research. The citations and abstracts which are included in this volume have been selected and reproduced from POPINFORM, a computerized on-line information retrieval system which includes in its data base more than 25,000 documents on regulation of fertility. Also included as an Appendix is a bibliography (without abstracts) of 1971 -1973 material on aspects of prostaglandin research that do not involve reproduction. This bibliography was prepared by the Upjohn Company of Kalamazoo, Michigan and is printed here with permission.