Geology at sea, 1952-1953

Geology at sea, 1952-1953 [sound only]. Narrated by John Garth?. Also for “The new frontier”, which used footage from the 1949 scientific exploration of the Velero IV in the Gulf of California, and off Catalina Island. Narration describes the Velero IV and her scientific equipment (dredges, corer, benthograph, diving equipment) employed in observing and documenting marine life and geology such as shrimp, plankton, diatoms, radiolarians, sea lions, giant kelp, bat rays, jellyfish (Medusa), porpoises, lobster, sand shark, and sea urchins. “Geology at sea” -- container. 24 frames per second. 990.6 feet. On 2-inch green core. Optical soundtrack, mono.