1. 1968
2. A comparative study of morphology, behaviour and ecology of Chaetogaster Limnaei ( von Baer) from several host species

   Buse, A. (Awdur), Medi 1968

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. 1966
4. Studies in the flora of the Rhynie chert

   Saadawy, W.E.-S. (Awdur), Meh 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

5. Studies on plant microfossils from the Carboniferous of North Wales

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

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

   Williams, P. (Awdur), Ion 1966

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. 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

8. 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

9. 1965
10. Comparative studies in the pathology of radiomimetic conditions

    Mason, J. (Awdur), Medi 1965

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

11. 1963
12. An ecological study of Chaetogaster limnaei( von Baer)

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

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

13. 1960
14. 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

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

    Green, H. (Awdur), Ebr 1959

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth