Norman Dott wrote prolifically on his subject, and was also much in demand as a speaker or lecturer and this series contains files relating to these works. Almost all of his lectures were specially written and, when he used previous material, he carefully re-worked it and made extensive adaptations to accommodate new research or a particular audience. The papers are presented chronologically as far as possible, though in cases where Dott preferred to work on a particular topic, e.g. Congenital Dislocation of the Hip, in a single folder extending over a span of time, this order has been preserved. Similarly, correspondence and research material remain in the relevant folders. Drafts, notes or manuscripts of published works listed by Phillip Harris in the Bibliography printed in Clinical Neurology, 16, 1968, are indicated by a note in the form Harris x (x = number). Other lectures and addresses, given at conferences or lecture tours abroad, appear in Sections Coll-32/E and Coll-32/F with the related correspondence travel arrangements, etc. See the Outline Guide on page 98 of the handlist for an outline index of the principal topics covered.