1958 xiii, 304 p., 116 figures, 32 (2 coloured) plates, publisher's cloth (dust jacket). Dust jacket protacted by plastic covering. Llibrary stamps, else good copy.
1930 21 p., several text figures, disbound (no covers). The notes are on the following subjects (titles): I. The evolution of spiders' snares; II. Aquatic spiders; III. Miscellaneous. Published in the Annals and Magazine of Natural History, with some unrelated papers [including: Womersley, On the Apterygota collected in British Guiana by the Oxford University Expedition of 1929 (13 p.). Unopened. A good clean copy. Scarce.