11 (39), Thomson to Ledermann, 28 Oct 1939

Thomson suggests Ledermann's new address means he has now found a house, and wishes he and his parents happiness. He asks him to send on the Psychometrika offprints.

He refers Ledermann to two papers by E B Wilson and Jane Worcester respectively in the Proceedings of the National Academy of Sciences, in particular drawing his attention to their use of a Thurstone formula, and suggests Ledermann might want to pursue the matter further. He asks Ledermann if he ever manages to get to Edinburgh, and suggests he might help him get a permit if necessary.

Also includes a page of incomplete notes regarding intelligence tests with reference to the Minnesota book and Hotelling's most predictable criterion.