Scope and Contents The correspondence is composed of:- E97.57 - a collection of letters (11), typescript and manuscript, and some notes on calculations, relating to investigations into Aitken's abilities as a mental calculator, dating from 6 December 1960 to 7 December 1961, from Aitken (on either paper headed with Mathematical Institute, Chambers Street, Edinburgh; or, private address on Primrosebank Road, Edinburgh) to Hunter (Department of Psychology). E97.58 - a collection of...