'Thoughts on diving', Harpers
Tags: 1930s; 1933; 1933-4-1; Beebe, William; Deep diving; Earth Sciences; Geography; Human evolution; Underwater exploration
'Radio�a brief for the defense', Harpers
Tags: 1930s; 1933; 1933-4-1; Engineering; Europe; Law and legislation; radio; Radio audiences; Radio programs; Taylor, Deems; Telecommunications; United States
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