1. 1966
2. Studies on the nutrition and feeding of the larvae of the large cabbage white butterfly, Pieris brassicae L.

   Awdur: Akhtar, M., 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. 1965
4. Comparative studies in the pathology of radiomimetic conditions

   Awdur: Mason, J., Medi 1965

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

5. 1963
6. An ecological study of Chaetogaster limnaei( von Baer)

   Awdur: Gruffydd, L. D., Ebr 1963

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. 1960
8. Seasonal changes in the plankton of inshore waters: with special reference to the life history of certate copepods

   Awdur: Haq, S. M., 1960

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. 1959
10. Calcareous algae of the silurian of the Welsh border

    Awdur: Green, H., Ebr 1959

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

11. 1958
12. A Study in the Experimental Taxonomy of some British Sphagha (section Cuspidata),with observations of their ecology.

    Awdur: Agnew, S., 5 Mai 1958

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth