1901 68, [2] p., 7 figures, 3 tinted lithographed plates, royal 4to (26.4 x 34 cm), paperbound (new plain covers). With author’s dedication. Reprinted from: Semon, Zoologische Forschungsreisen in Australien und dem Malayischen Archipel. The plates are drawn by the author. Tipped in is a printed rendition of a speech Van Bemmelen gave in 1899 on the same subject (Tijdschr. Ned. Dierk. Vereen. - 6 p.).
1972 xi, 267 p., num. figs, cloth (dust jacket). A few small stains on two pages. Author's dedication. Geodynamic Models 2.
1893 [6], 48 p., 1 folded map, paperbound. Unopened copy. Thesis.
1893 [6], 48 p., 1 folded map, paperbound (front cover somewhat soiled, back cover detached). Unopened copy. Thesis.