1928 The letter is pasted on a reprint by Sikes dated 1928 ''The external Morphology and Life-History of the Coccid Bug, Orthezia urticae (37 p., 2 pls).
1992 v, 94 p., 1 map, paperbound. Library stamps.
1979 v, 79 p., 1 map, new green cloth with author in gilt on spine. Library stamps, else good copy.
1956 272, [1] p., 420 figures, 10 coloured plates, publisher’s cloth. In Czech, with 5-page German summary. Library stamps, else very good copy. Scarce.
1907 318 p., 20 figures, 5 (4 double-paged) lithographed plates, paperbound (front cover chipped). Library stamps, else good copy of this scarce book.
1974 Instituto de Zoologia " Dr. Augusto Nobre", 127, 1974 : In-8 Carré, Broché. tiré-à-part, pp. 9-50, 1 carte dépliante hors-texte, Très bon état, Couv. fraîche, Dos impeccable, Intérieur frais.
2015 Entomologia Africana, 20(2), 2015 : in-8, broché extrait, pp. 23-34, 1 planche couleurs et 18 figures in-texte, couverture illustrée, très bon état !
1905 57 p., 4 double-page lithographed plates, disbound (no covers). Rare paper on the Chilean myriapod fauna, with several new taxa. Published in the Zoologische Jahrbücher Supplement Band 6, drittes Heft. A good clean copy.
1907 29 p., 86 figs, disbound. Published in Mitteilungen aus dem Naturhistorischem Museum in Hamburg.
1949 30 p., 15 groups of figures, roy. 4to, original printed wrappers. Museu do Dundo. Two library stamps. Scarce.
1914 43 p., 24 figures, original printed wrappers.
1918 27 p., 120 figures, 1 photograph, paperbound. Very good copy.
1990 35 p., 86 figures, paperbound. Published in: Zoologische Verhandelingen. Very good copy.
1994 [=1995] 62 p., 156 figures, paperbound. Published in: Zoologische Verhandelingen. Very good copy.
1992 80 p., 156 figures, paperbound. Published in: Zoologische Verhandelingen. Very good copy.
2006 108 p., 108 figures, paperbound. Monographs Entomological Society of America. Library stamps and removed sticker mark on top left corner of front cover.
1892 (2nd ed.) vii, 1084 p., 1098 figs, later green half cloth (original covers laid on covers and spine). Library stamps. Binding somewhat rubbed. A rare copy of the second and best edition of this work. This edition has twice as many pages compared to the first edition, and 5 times more figures.
1887 42 p., 2 beautifully coloured lithographed plates by Jobin, 4to, paperbound (original printed covers). Contains the descriptions and illustrations of new species of spiders and harvestmen. Rare and in very good condition. Nissen ZBI, 4695.
1998 41 p., 4to, paperbound (unsewn, plastic covers). Verslagen en Technische Gegevens Instituut voor Systematiek en Populatiebiologie (Zoölogisch Museum) Amsterdam.
1964 98 p., 117 figs, paperbound. Published in: Tijdschrift voor Entomologie.
1964 98 p., 117 figs, paperbound. Published in: Tijdschrift voor Entomologie.
1964 [4], 98 p., 117 figs, paperbound. Thesis. Library stamps, else good copy.
1977 198 p., 140 figures, paperbound. Library stamps, else good copy. In Macedonian.
2008 London, Academic Press, 2008 : in-8, cartonnage éditeur 180 pp., figures in-texte, couverture illustrée de l'éditeur. Etat neuf !