proceedings of a conference under the auspices of the British association for the advancement of science held on April 17th and 18th, 1958, at the Royal Geographid society, London Perkins, W H (Ed.) creator British Association for the Advancement of Science (1958: London) creator text xx London Butterworths Scientific 1958 9999 monographic und viii, 150p. W H Perkins Science-Study and teaching; Science teachers; Education-Curricula 375.5 B862S NITIL 190328