Research
"False-feeding" of passerines
Ash, J.S. 1951. British Birds, 44: 406-407.
Keratitis in pheasants following treatment with phenothiazine.
Clapham, P.A. 1950. Journal of Helminthology, 24: 61-62.
On treating and preventing gapeworm disease.
Clapham, P.A. 1950. Journal of Helminthology, 24: 53-60.
On sterilizing land against poultry parasites.
Clapham, P.A. 1950. Journal of Helminthology, 24: 137-144.