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.
Adam & Charles Black, London, 1964. In-8, tela editoriale, pp. 108, con numerose illustrazioni in bianco e nero nel testo. In buono stato (good copy).
1929 6 papers. 6, 16, 10, 8, 25, 50 p., 5, 15 figs, 1 map, disbound (no covers). Published in: Proceedings of the Zoological Society of London.
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.