"Nonfiction radio programs"@en . . . "Program no. 251: A discussion about what is presently known about polio and how to treat it. Based on a research by Dr. John Wallace Ghormley. Program no. 252: A discussion about the work of Dr. Maurice Ewing in showing deep-sea creatures through photography. Based on a research by Dr. Maurice Ewing."@en . . "Science radio programs"@en . . "Educational radio programs"@en . . . "What we know about polio"@en . "Excursions in science. Program no. 251, What we know about polio Excursions in science. Program no. 252, Photographing the ocean bottom"@en . . . "Radio serials"@en . . . . . . . . . . . . . .