Waas, M J to Conrad Hal Waddington Correspondence between M J Waas (University of Ceylon), C H Waddington (University of Edinburgh) and E Wikramanayake (University of Ceylon), concerning Dr Wikramanayake's wish to study for a PhD in cytogenetics whilst lecturing in medical genetics. In the final letter Waddington notes that he will forward the correspondence on to Penrose. Mar-Apr 1965