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. 1953
4. The study of some phenomena observed with monochromatic X-ray beams.

   Jones, G. P. (Awdur), Owen, E. A. (Goruchwylydd), Medi 1953

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth