Research
On the larval migration of Syngamus trachea and its causal relationship to pneumonia in young birds.
Clapham, P.A. 1939. Journal of Helminthology, 17: 159-162.
Some polyradiate specimens of Taenia pisiformis and Dipylidium caninum, with a bibliography of the abnormalities occurring among Cestodes.
Clapham, P.A. 1939. Journal of Helminthology, 17: 163-176.
On flies as intermediate hosts of Syngamus trachea.
Clapham, P.A. 1939. Journal of Helminthology, 17: 61-64.
Three new intermediary vectors for Syngamus trachea.
Clapham, P.A. 1939. Journal of Helminthology, 17: 191-192.
On a sex difference in the infection rate of birds with Syngamus trachea.
Clapham, P.A. 1939. Journal of Helminthology, 17: 192-194.
On the Presence of Hooks on the Rostellum of Hymenolepis microps
Clapham, P.A. 1939. Journal of Helminthology, 17, 21-24.