Dr. G„ Mo Smith identified the marine and freshwater algae collected on 

 the Pacific Coast. He supplied cultures of Chlamydomonas and 

 Protosiphon, and he provided indispensable encouragement and ad- 

 vice, 

 Dr„ Lo G. Williams collected algae at North Carolina, 

 Dr, R„ D. Wood identified the one available species of Chara , 



At the Argonne National Laboratory, 



Dr, W, M, Manning encouraged the development and application of 

 differential migration methods of analysis. Mr. H„ Diamond, Mr, 

 J. Engelke, Dr. G. H. Evans, Dr, G, W, Murphy, Mr. T, R, Sato, 

 Mr, P. A. Sellers, Mr. J. C. Sullivan, and Dr. S, E, Wood investi- 

 gated various aspects of these differential migration methods* 



