oe DELETED ' This session was adjourned at 12:15 p.m. FOURTH SESSION (July 13, 1954) The briefings were resumed at 1:30 p.m. Dr. Bradbury introduced Tactical Dr, Duncan MacDougall, who talked on the development of tactical wezocns Weapons of small size and yield. Dr. MacDougall a ah to give . said there were three sizes of warhead on the books of nominal diameters 30", 22", and 15", Exact specifications in the military requirements still seem somewhat open. There seems to be no strong interest in the 30BIRD spon, which could oN te” cow ae,