6-Ecology or Chemistry? by A. H. Strickland
For a century, crop producers have tried to vanquish the five thousand different insects that are among man's greatest enemies by trying to control them with chemicals... A new attitude suggests that an ecological approach may succeed where * trouble-shooting with chemicals' has failed.
Mr. Strickland is a member of the Ministry of Agriculture, Fisheries, and Food Plant Pathology Laboratory at Harpenden.
Talk by R. P. Winnington-Ingram
Professor of Greek Language and Literature in the University of London (King's College)
The music examples sung by Andrew Raeburn
Music was widely practised and highly prized by the Greeks; indeed, Plato believed that no change could be made in styles of music without affecting the morals of society; but very little of the actual music survives, and the theory of it is much disputed. Professor Winnington-Ingram describes the principal characteristics of Greek music, and suggests an explanation for the moral and emotional differences that were attached to different kinds of melody.
(The recorded broadcast of Nov. 27)
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