1936-12-20 - 0000 - Freer Gallery
1937-06-06 - 0000 - Communications,
1938-01-09 - 0000 - Masters Behind The Mellon Masterpieces
1938-02-06 - 0000 - The Four Elements Of Mechanics
1938-03-20 - 0000 - Rockets and Planets
1938-04-10 - 0000 - Introducing The Universe
1938-07-03 - 0000 - 
1938-07-31 - 0112 - Potter's Art
1938-10-23 - 0124 - Great Engineering Feats: Boulder Dam
1938-12-12 - 0000 - The Story Of Petroleum
1939-02-26 - 0142 - Cave and Cliff Dwellers
1939-04-09 - 0148 - The Story Of First Lady's Fashions
1939-05-28 - 0000 - The Story Of Salt
1939-07-02 - 0000 - The Story Of French Soldiers In The American Revolution
1939-07-16 - 0000 - Birds In The Service Of Man
1939-07-23 - 0000 - The Story Of Fossils
1939-09-17 - 0000 - The Story Of First Lady's Fashions
1939-10-01 - 0000 - The Story Of King Salmon
1939-10-08 - 0000 - The Story Of The Indians Who Met Columbus
1939-10-15 - 0000 - The Marvels Of Sound
1939-10-22 - 0000 - The Story Of Earthquakes
1939-10-29 - 0000 - The Story Of Concrete
1939-11-05 - 0000 - Germanna Ford: Crossroads Of History
1939-11-12 - 0000 - The Story Of The Great Apes
1939-11-19 - 0000 - Flying In Safety
1939-11-26 - 0000 - Our Debt To The Indians
1939-12-03 - 0000 - Exploring The Amazon For Plants
1939-12-10 - 0000 - Historic Gems
1939-12-17 - 0000 - Cotez The Conquerer
1939-12-31 - 0000 - The Story Of Printing
1940-01-07 - 0000 - The March Of Science
1940-01-14 - 0000 - The Railroads Today
1940-01-21 - 0000 - Harnessing Electromagnetism
1940-01-28 - 0000 - Volcanoes
1940-02-04 - 0000 - The American Bison
1940-02-11 - 0000 - The Story Of Hard Money
1940-02-18 - 0000 - The Evolution Of The Typewriter
1940-02-25 - 0000 - Pompeii Lives Again
1940-03-03 - 0000 - The Story Of Radium
1940-03-10 - 0000 - The Conquest Of Noise
1940-03-17 - 0000 - Our Changing Wild Life
1940-03-24 - 0000 - The Story Of Pharmacy
1940-03-31 - 0000 - Opening Of The Far West
1940-04-07 - 0000 - American Inventions
1940-04-14 - 0000 - Science In The Field
1940-04-21 - 0000 - The Story Of Dinosaurs
1940-04-28 - 0000 - The Story Of Corn
1940-05-05 - 0000 - The Old Timer
1940-05-12 - 0000 - Freer Gallery
1940-05-19 - 0000 - Voyages Of Charles Wilkes
1940-05-26 - 0000 - The Story Of Airships