National Geographic : 1936 Jul
Just as the unseen radio beam provides a sure path above the clouds for great trans port planes, so does the out-of-sight Pennzoil in your motor mean performance and pro tection. S New Pennzoil is all oil - all lubrication. Its extra-tough film conquers heat and fric tion and wear. It never wastes power by form ing gum on valves and piston rings, for all harmful elements are removed by Pennzoil's own refining process. MemberPnn. .. deC.de OilAs... PermitNo.2. New Pennzoil saves PENNZOILDF you money three ore Penisylw.. ways - on gas mile- N~zaIL age, on oil mileage and on repair bills. afeLubricaio In 1935, United Air Lines planes .. world's greatest high-speed transport fleet .. flew 6,000,000 dusk-to dawn miles. THE ONE HOTEL IN WASHINGTON THAT'S NEAR LINCOLN MEMORIAL AND GOgETOWn WASHINGTON MONUMENT 0 WASHINGTON UNIVERSITY OSRVAOY Striking CATDRAL Unlimited Scope oCONTAX takes striking t. ,pictures impossible with cLub usual type cameras. Candid shots even in ordinary arti ficial light, indoors or out; CAnoucunIvs WALwRRED ROCKCREEK PARK fast-action sport photos, HOSNTAL scenic pictures, close-ups of flowers, birds, etc. Auto 0 When you visit Washington, you'll find matic range-finder focus the Wardman Park most convenient to nSpeedno guessin diup to 1/10an00 sec. more places. It's a mere 304 taxi ride Your choice of 12 inter from nearly everything worthwhile in the changeable Capital. The big, comfortable rooms are as ZEISS LENSES low as $3 a day for one person, $5 for two. F SALEA LEADINGDEALERS Sendforfolderand map covering CARL ZEISS, Inc., Dept. C points of interest in Washington 485 Fifth Ave., New York 728 So. Hill St., Los Angeles THE WARDMAN PARK ZEISs Connecticut Ave.atWoodley Rd.,Washington, D.C. "Mention the Geographic-It identifies you."