International Psycho-Analytical Association

6 July 1936
London

Dear Professor,

Please accept my warm congratulations. You have achieved the highest scientific honour in England and, I should suppose, in the world.

Harold Jeffreys is a Cambridge professor—I think of geo-physics.1 He was in analysis with me for a couple of years, and later with Miss Sharpe. The remarkable feature of his case was a combination of the highest intellectual capacities with a very low degree of ordinary social capacities, such as savoir faire, common sense, etc.. I think the success of the analysis was only moderate. He has an astounding facility for rapidly acquiring the profoundest knowledge of any subject, e.g. botany, higher mathematics, physics, etc., and has made himself world famous through his mathematical researches into physics and the structure and movements of the earth,