Title reads: "British International Pictures Limited presents Secrets of Nature. Distributed by Wardour Films Ltd. The Froth Blower. Produced by British Instructional Films Ltd."
Cuckoo spit clinging to plants. Voice over explains that this froth has nothing to do with the cuckoo but with...
Cute penguin activity at London Zoo.
Educational film made to teach children about shellfish.
Educational film focusing on owls - shots of their talons, faces, etc. c. 1947
Educational film showing work in a forge.
Educational film about baa lambs - various shots of sheep and lambs eating, playing, sleeping etc.
Cambridge University students take air lessons.
Educational film about a device which enables men to extract water from a river and lift it to another level.
Educational film showing the use of a primitive irrigation system.