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<p>A delightfully solemn record of a most unusual physiological "experiment" carried out (or rather, performed) and filmed by the staff of Sir Henry Dale's former laboratory during the last days before its transfer from Hampstead to Mill Hill in 1949. Among many other unexpected delights, shows the young Dr. William Paton demonstrating a novel scientific application for condoms. Of considerable interest for historians of twentieth-century British physiology and pharmacology, and extremely amusing, though impossible to follow without detailed historical explanations. The film is structured round a series of captions.</p>

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