Introduced by Eric Simms.
Caddis larvae, dragon-fly nymphs, water scorpions, sticklebacks, and other pond-dwellers.
BBC film for Schools
Previously shown in May 1963
Repeated on Friday at 11.35 a.m.
(to 9.55)
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Introduced by Eric Simms.
Caddis larvae, dragon-fly nymphs, water scorpions, sticklebacks, and other pond-dwellers.
BBC film for Schools
Previously shown in May 1963
Repeated on Friday at 11.35 a.m.
(to 9.55)