Letters between Edwin Link and H. T. Howard discussing a method for dealing with light atmosphere speech. Letters between Edwin Link, Frank Donahue, Edward Lanphier, Pablo Bush Romero, Robert Abel, Charles Snelling, and Bob Wilson regarding questions on underwater research, the Mexico convention program, an election for a councilor of the Marine Technology Society, and a luncheon with Edwin and Marion Link. Letter from David Leith to Charles Snelling expressing his interest in Snelling's project. Letter from H.M. Vineburgh to Marilyn C. Link with a pamphlet on the New York World's Fair. Letters between Edwin Link, Marion Link, and E. C. Stephan regarding a report on deep submergence, a statement on the Navy and ocean engineering, and meetings with Mr. Nolan and Mr. Armstrong. Letter from H. H. Joyner to E. C. Stephan regarding a trenching machinery to bury cables. Letter from E.C. Stephan to Walt A. McGuiness regarding the arrival of Edwin Link into Key West for his experimental work.