Learning how to determine latitude by using a sextant is Senta Osoling, student at Polytechnic High School, Los Angeles, Calif. Navigation classes are part of the school's program for training its students for specific contributions to the war effort

Boys trained in the fundamentals of navigation may become technicians in the armed service, Los Angeles, Calif. Thomas Graham, a member of the Victory Corps at Polytechnic High School, is learning to use a sextant to determine longitude and latitude