* Professor Fenner, a member of the International Steering Committee of our forthcoming Third International Conference on Environmental Future, very kindly wrote for us, during the Assembly, the account which is published next below, with a photograph of the certificate as his Fig. 2.—Ed.

† The Assembly subsequently supported these recommendations and we understand privately that this number of acceding countries is increasing quite rapidly, so that, writing in the first week of August 1980, Dr Arita, Chief of the Smallpox Eradication Unit of WHO, gave the current number as 78, with only 4 countries retaining the requirement of an international certificate of smallpox vaccination for entering travellers.—See page 177 below, Ed.