Rensselaer Polytechnic Institute. Fresh Water Institute;
Research relating to Darrin Fresh Water Institute is funded by Rensselaer Polytechnic Institute and various U.S., N.Y. and local agencies. Rights to this article are retained by the author and the publisher.;
This research was supported in part by the Office of Water Resources Research (Contract 14-31-0001-3387) and in part by theEastern Deciduous Forest Biome, U.S.International Biological Program, funded by the National Science Foundation, under Interagency Agreement AG-199,40-193-69, with the Atomic Energy Commission, Oak Ridge National Laboratory. The research reported represents a portion of a thesis submitted by S. L. Williams in partial fulfillment of the requirements for the Ph.D. degree in Environmental Engineering at Rensselaer Polytechnic Institute.; Subsequently published in Bioassay Techniques and Environmental Chemistry, edited by Gary E. Glass, Ann Arbor Science Publishers, Inc., 1973.