1. 1966
2. Studies on plant microfossils from the Carboniferous of North Wales

   Hibbert, F. A. (Awdur), Ebr 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. Studies on fossil plants of Karoo age from Central & Southern Africa

   Williams, P. (Awdur), Ion 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. The genetics and evolution of differences between closely adjacent plant populations, with special reference to heavy metal tolerance

   Antonovics, J. (Awdur), Ion 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

   Akhtar, M. (Awdur), 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

6. 1965
7. Comparative studies in the pathology of radiomimetic conditions

   Mason, J. (Awdur), Medi 1965

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

8. Children's leisure-reading tastes and habits in relation to age, sex, intelligence and other factors

   Leng, I. J. (Awdur), 1965

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. 1963
10. An ecological study of Chaetogaster limnaei( von Baer)

    Gruffydd, L. D. (Awdur), Ebr 1963

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

11. A behaviourist approach to pyscho-analysis

    Miles, T. R. (Awdur), 1963

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

12. 1960
13. Seasonal changes in the plankton of inshore waters: with special reference to the life history of certate copepods

    Haq, S. M. (Awdur), 1960

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

14. 1959
15. Calcareous algae of the silurian of the Welsh border

    Green, H. (Awdur), Ebr 1959

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth