The third of a series of six programmes.
Aidan Crawley introduces speakers from different countries in Western Europe who talk about some of the fundamental challenges facing Europe today and in the future.
In Holland: Professor L. J. van Holk, Dr. Werner von Simson
In Britain: Professor Martin Ryle, F.R.S.
In France: Professor Pierre Auger
Presented with the assistance of the Television Services of Europe
(BBC recording)