1. The fixed-wing aeroplane can make accurate insecticide drops at 60 mph over open stretches of river Subject(s): AircraftWorld Health Organization
3. Visit to Mali by PHS Surgeon General William Stewart following ceremony in Ghana Subject(s): Aircraft
4. [A PHS physician stands at the bottom of the steps to an airplane] Subject(s): AircraftNursesUnited States. Public Health Service.
5. U.S. Army Base Hospital, Fort Sill, Oklahoma: Nurse adjusting a parachute before a flight Subject(s): Aircraft
