Abstract
THE Gaumont British Instructional Films Bureau has recently added some interesting biological films to its already extensive collection. “Climbing Plants” portrays clearly the many different devices for climbing adopted by plants in their struggle for existence, including 'scramblers', thorn, petiole and aerial root climbers, as well as types that climb by means of tendrils and stems. The photographs of circumnutation in the bean seedling are as excellent as the rest of the film. In “The Swan”, the photographer has captured some entertaining 'shots' of the famous swannery at Abbotsbury, near Wey-mouth. Courtship and breeding are carefully presented, as well as pleasant recordings of cygnet development. “The Life-Story of a Fern” includes photographs of royal, hart's-tongue, male and bracken ferns, indicating methods of spore production and liberation. In this film some informative pictures of fertilization processes in the ferns are particularly noteworthy.
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Biological Films. Nature 145, 890 (1940). https://doi.org/10.1038/145890a0
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DOI: https://doi.org/10.1038/145890a0