Research
New records of helminths in British birds.
Clapham, P.A. 1938. Journal of Helminthology, 16: 47-48.
Are there host strains within the species of Syngamus trachea?
Clapham, P.A. 1938. Journal of Helminthology, 16: 49-52.
The relation of helminthiasis to leukaemia in domestic fowls.
Clapham, P.A. 1938. Journal of Helminthology, 16: 53-56.
The food of partridge chicks (Perdix perdix) in Great Britain.
Ford, J., Chitty, H., & Middleton, A.D. 1938. Journal of Animal Ecology, 7: 251-265.