1946. 27 pp. Paperback in Very Good condition, in original blue wrappers. Bulletin of the American Museum of Natural History, Volume 87, Article 2, pp. 101-138. 3 text figures. The purpose of the survey is to bring together, and publish as a series of monographs, the available information on all aspects of the interrelation of biology and geochemistry. The survey is intended as more than a synthetic summary.