F. G. Cawston

Environmental Influences which favour the Development and Spread of the Bilharzia Parasite in South Africa. Food Supply of " Physopsis.".

F. G. Cawston, 1926 .

The Creeping Eruption of Natal known as Sandworm Disease.

F. G. Cawston, 1928 .

Fluke Disease.: A Consideration of those Fresh Water Mollusca which serve as Intermediate Hosts for Fasciola hepatica L. and Fasciola gigantica Cobbold

F. G. Cawston, 1925 .