Research
On Capillaria cadovulvata, pathogenic to Perdix perdix.
Clapham, P.A. 1949. Journal of Helminthology, 23: 69-70.
On the identification of some species of Trichostrongylus.
Clapham, P.A. 1947. Journal of Helminthology, 22: 37-46.
Game conservation on croplands in Great Britain.
Middleton, A.D. 1947. In: Proceedings of United Nations Scientific Conference on the Conservation and Utilisation of Resources: Wildlife and Fish Resources. Game and Fur Conservation: 190-195. United Nations, New York.
Some bird helminths from Antigua.
Clapham, P.A. 1945. Journal of Helminthology, 21: 93-99.
Rabbit control.
Middleton, A.D. 1941. In: Poultry feeding in war time: 100-102. Ministry for Agriculture, Forestry and Fisheries.
On wild birds as transmitters of helminth parasites to domestic stock.
Clapham, P.A. 1940. Journal of Helminthology, 18: 39-44.
On the helminths of corvid birds in the British Isles.
Clapham, P.A. 1940. Journal of Helminthology, 18: 89-94.
Further studies on Coenurus glomeratus.
Clapham, P.A. 1940. Journal of Helminthology, 18: 95-102.