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MacRae Library William Threlfall collection Canada
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Collected reprints, volume I

This file contains a volume of reprinted journal articles written by William Threlfall between 1963-1984. It deals primarily with diseases, virology, and parasitology of birds and waterfowl.

Collected reprints, volume II

This file contains a volume of reprinted journal articles written by William Threlfall between 1963-1984. It deals primarily with diseases, virology, and parasitology of birds and waterfowl.

Studies on the helminth parasites of herring gulls (Larus argentatus Pontopp.) on the Newborough Warren Nature Reserve, Anglesey

This file contains the thesis titled "Studies on the helminth parasites of herring gulls (Larus argentatus Pontopp.) on the Newborough Warren Nature Reserve, Anglesey" / by William Threlfall. 1965. Ph.D. Thesis. "A thesis submitted to the University of Wales in candidature for the degree of Philosphiae Doctor". Also includes 2 pages of handwritten data and an article by the same author: Threlfall, William. (1963) Factors concerned in the mortality of some birds which perished in Anglesey and Northern Caernarvonshire during the winter of 1963, with special reference to parasitism by helminths. Annals And Magazine Of Natural History, vol. 6, no. 72, 721-737.