| Description | Notebook labelled "St. George's Hospital, Thomas Young Lecture 1964, Age of Parent and Abnormality in the Child, with much data on Down's anomaly added subsequently". Contains a page index, a draft text for the lecture "Age of Parent and Abnormality in the Child", notes and data on various congenital disorders, and correlated data on Down's syndrome births across 11 countries, with some data added in 1965. |