Scope and Contents Letters between I. E. Wallen, Robert Wicklund, Giles Mead, and Link Dive participants concerning the Link/Smithsonian dives from Deep Diver. Letters from Edwin Link to O.D. Waters regarding the project discussed at President Humphrey’s oceanographic meeting, as well as a letter written by Dr. Giles Mead. Letters between I. E. Wallen, Robert Wicklund, and A. M. Kennedy regarding the Hydro-Lab Underwater Habitat Program. Letters between Edwin Link, Marion Link, D. T. Alexander, and Giles Mead...