THE inevitable coming of the ' great leveller ' is taken for granted ; yet why, apart from disease. accident, and suchlike unnatural events, do we die ? Professor Crew, who will deal with the problem from a biological point of xiew, is
Director of the Animal Breeding Research Depart ment in the University of Edinburgh and Pro fessor of Animal Genetics. He is, apart from his aeademie work. widely known for his biological monographs and manuals.
