1. 1958
2. A Study in the Experimental Taxonomy of some British Sphagha (section Cuspidata),with observations of their ecology.

   Agnew, S. (Awdur), 5 Mai 1958

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. 1959
4. Calcareous algae of the silurian of the Welsh border

   Green, H. (Awdur), Ebr 1959

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

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

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

   Mason, J. (Awdur), Medi 1965

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. 1966
10. 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

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

    Williams, P. (Awdur), Ion 1966

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

12. 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

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

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

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

14. Studies in the flora of the Rhynie chert

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

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

15. 1968
16. 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

17. 1970
18. Studies on organ cultures of slug reproductive tracts

    Bailey, T. G. (Awdur), Medi 1970

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

19. 1973
20. The effects of trampling and vehicles on natural vegetation.

    Liddle, M. (Awdur), P. Greig-Smith, P. (Goruchwylydd), Mai 1973

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

21. 1974
22. A study of excretion in the slug Agriolimax reticulatus

    Garner, J. (Awdur), Medi 1974

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

23. 1979
24. An economic appraisal of forestry and the forest industries of Greece 1950-1990.

    Sakkas, G. A. (Awdur), Ion 1979

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

25. Studies in Antarctic palaeobotany.

    Lucas, R. C. (Awdur), Ion 1979

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

    Linnard, W. (Awdur), Ion 1979

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

27. Biochemical aspects of fascioliasis in domestic and experimental animals.

    Gameel, A. A. R. (Awdur), Meh 1979

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

28. 1980
29. Food selection by the rabbit.

    Soane, G. A. (Awdur), Ion 1980

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

    Minjarez, R.D. (Awdur), Ion 1980

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

    Arene, F. O. I. (Awdur), Tach 1980

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

32. 1981
33. Micronutrient studies on cotton growth on Syrian calcareous soils.

    Mohammad, S. Y. (Awdur), Maw 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

    Mahmoud, F. M. S. (Awdur), Mai 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

35. Studies on the ecology of Littorina Obtusata

    Hollingworth, C. E. (Awdur), Medi 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

36. Biosystematic and cytological studies of mosses and liverworts.

    Abderrahman, S. M. M. (Awdur), Rhag 1981

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

37. 1982
38. Distribution, concentration and bonding factors affecting the performance of water repellents applied to wood

    Razzaque, M. A. (Awdur), Medi 1982

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

39. 1983
40. Ecophysiology of ecotypes : An investigation in the ecophysiology of sand dune ecotypes

    Baleela, A. R. H. (Awdur), Ion 1983

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

41. Demography of animal modular colonies.

    Cancino, J. M. (Awdur), Meh 1983

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

42. An experimental study on the migration of the African armyworm moth, Spodoptera exempta (Walker) (Lepidoptera : Noctuidae).

    Parker, W. E. (Awdur), Medi 1983

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

43. 1984
44. The biology of reproduction in two British pulmonate slugs.

    Nicholas, J. (Awdur), Hyd 1984

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

45. 1985

46. Carbon Allocation in Barley Plants

    Farrar, S. (Awdur), Farrar, J. F. (Goruchwylydd), 1985

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

47. Reciprocal transplantations to study local specialisation and the measurement of components of fitness.

    Mackenzie, S. (Awdur), Ion 1985

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

48. The characterisation and control of ochre deposits in land drainage systems.

    Ap Dewi, I. (Awdur), Chwef 1985

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

49. An economic approach to assessing the value of recreation with special reference to forest areas.

    Christensen, J. B. (Awdur), Price, C. (Goruchwylydd), Rhag 1985

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

50. 1986
51. Physiological aspects of tillering in barley (Hordeum distichum).

    Woodward, E. J. (Awdur), Ion 1986

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

52. Studies in cyclopropene chemistry.

    Dulayymi, A. R.A. (Awdur), Ion 1986

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

53. Sudies on the epidemiology of a Nigerian strain of Schistosoma haematobium with particular reference to the molluscan hosts

    Fryer, S. E. (Awdur), Maw 1986

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

54. Geochemical and mineralogical studies of the weathering of Silurian argillaceous rocks

    Chapman, P. (Awdur), Medi 1986

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

55. 1987
56. Studies of leaf growth in barley

    Maan, A. A. S. (Awdur), Ion 1987

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

57. Genetic and environmental factors in the migration of the African armyworm moth, Spodoptera exempta (Walker) (Lepidoptera :Noctuidae).

    Woodrow, K. P. (Awdur), Medi 1987

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

58. Forest recreation use patterns user behaviour and recreational value in Malaysia.

    Sabri, W. M. W. (Awdur), Tach 1987

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

59. 1988
60. Cost benefit analysis and sustained yield forestry in India.

    Kumar, P. J. D. (Awdur), Price, C. (Goruchwylydd), Ion 1988

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

61. Studies of the biological activity of a novel herbicide (Triasulfuron) including studies of mobility and persistence in soils.

    Oppong, F. K. (Awdur), Hyd 1988

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

62. 1989
63. Vegetation succession following the clearance of Rhododendron in the Vale of Ffestiniog.

    Hockley, T. G. (Awdur), Hyd 1989

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

64. 1990
65. Water relations of salt stressed wheat

    Arif, H. (Awdur), Ion 1990

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

66. The application of recently developed techniques to Welsh Black Cattle in a group breeding scheme.

    Brown, C. M. (Awdur), Ebr 1990

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

67. The effects of selective logging methods on hydrological parameters in Peninsular Malaysia.

    Nik, A. R. H. (Awdur), Ebr 1990

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

68. 1991
69. Effects of water stress and salinity on contrasting wheat genotypes.

    Mallah, A. N. (Awdur), Ion 1991

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

70. 'Shake' defects and wood structure variations in British oaks (Quercus SPP.).

    Henman, G. S. (Awdur), Medi 1991

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

71. Variation of growth and reproduction in a marine bryozoan.

    Hunter, E. (Awdur), Hyd 1991

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

72. 1992
73. Cryopreservation of ram semen for artificial insemination.

    Ahangari, Y. J. (Awdur), Ion 1992

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth