1. 1979
2. Studies in Antarctic palaeobotany.

   Awdur: Lucas, R. C., Ion 1979

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. The history of forests and forestry in Wales up to the formation of the Forestry Commission

   Awdur: Linnard, W., Ion 1979

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. Factors influencing competition and mortality in barnacles.

   Awdur: Barnett, B. E., Meh 1979

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

5. 1980
6. Food selection by the rabbit.

   Awdur: Soane, G. A., Ion 1980

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. Studies on plant-animal interactions : Terrestrial molluscs and their food plants.

   Awdur: Minjarez, R. D., Ion 1980

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

8. The distribution and biodegradation of urea in costal waters

   Awdur: Turley, C. M., Awst 1980

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. Invasion of host tissue by infective larvae of Ascaris suum (Goeze, 1782)

   Awdur: Arene, F. O. I., Tach 1980

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

10. 1981
11. Micronutrient studies on cotton growth on Syrian calcareous soils.

    Awdur: Mohammad, S. Y., Maw 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

12. Studies on the male reproductive cycle in the lizard Chalcides Ocellatus.

    Awdur: Mahmoud, F. M. S., Mai 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

13. Basic needs fulfilment and the evaluation of land use alternatives with special reference to forestry in Kerala State, India.

    Awdur: Nair, C. T. S., Awst 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth