Special problems in the handling of biological information arise from the diversity of biological subject matter and the complexity of biological approaches towards phenomena of the living world. This state-of-the-art report on communications of information in the biological sciences provides information on: (1) users of biological information, (2) informal transfer of information, (3) primary publications, (4) secondary information services and (5) libraries. Detailed suggestions relating to communication of biological science information include: (1) design of information systems to include the general user and (2) compatible interconnection of the three existing major organizations in biology - - the National Agricultural Library, the National Library of Medicine and the Biosciences Information Services of Biological Abstracts. Also outlined are various ways to improve: (1) informal transfer of information, (2) primary publications and (3) secondary information services. (MF)