Letter to Pontecorvo from Professor Conrad Hal ("Wad") Waddington concerning the Arthur Balfour Professorship at Cambridge

Correspondence between Pontecorvo and Professor Conrad Hal ("Wad") Waddington concerning an "annonymous" article submitted to the Cambridge Review

Letter to Pontecorvo from Professor Conrad Hal ("Wad") Waddington concerning news of Pontecorvo's decision to accept the job at the Albert Einstein College of Medicine

Letter to Pontecorvo from Professor Conrad Hal ("Wad") Waddington expressing his pleasure at hearing that Pontecorvo will accept the Cambridge job if offered

Correspondence between Pontecorvo and Professor Conrad Hal ("Wad") Waddington about Arthur Balfour Professorship at Cambridge

CD titled 'Celebration of 80 years of animal breeding and genetics research in Edinburgh [1999] Photographs and annotations - Celebration of 100 years of Professor C.H. Waddington's birth in Edinburgh [2005] Talk, photographs, annotations etc.'

Printed booklet titled 'Diary of a visit to Moscow and China as a member of a delegation from the Royal Society of London to the Academia Sinica' by C.H. Waddington

Partial typescript for 'Behind Appearance' by C.H. Waddington, titled here 'Modern Painting and the Sciences'

Manuscript titled 'Sources for the Man Made Future' by C.H. Waddington

Photocopy of a draft typescript titled 'The Man Made Future - An undergraduate text by C.H. Waddington. Book One: Tools of Thought'

File of papers relating to C.H. Waddington's preparation for the book 'Tools for Thought'

Copies of research materials relating to Waddington's work

File of letters to Yolanda Sonnabend, chiefly from C.H. Waddington

Papers concerning Sang's appointment at the Animal Breeding and Genetics Research Organisation

Material relating to 'Significance and Form in Nature and Art: IV Waddington Memorial Conference' held in Perugia, Sala Brugnoli-Palazzo Cesaroni, 19 March 1993

Manuscripts and material relating to C.H. Waddington's research

Letters to Yolanda Sonnabend concerning the publication and design of 'Tools for Thought'

Notes for 'Genetics Lectures', autumn 1950

Photographs of Pontecorvo giving lectures and receiving honorary degrees as well as others of his friends and colleagues