1912 631 p., 11 chromolithographed plates with explanatory text leaves, 2 maps, small folio (29 x 36 cm), simple quarter blind cloth over plain green cloth-backed boards. Original front cover bound in, as very often the thin and fragile transparent covers with damage (large upper corner chipped). Uncut. Provenance: stamp of the Belgian malacologist Paul Dupuis (1869-1931) in the top margin of the half-title, later in the library of Cor Karnekamp (with his ex libris). Apart from the chipped front cover an excellent, spotless copy. Rare in any state.An important and beautifully illustrated work on Arctic molluscs. Buccinidae, Littorinidae, and Astartidae feature prominently in an amazing variety.
1906 125 p., 5 beautiful coloured, lithographed plates, small folio (28 x 36 cm), paperbound (back broken, thin paper covering of front cover chipped at left margin). With author’s dedication to Dr. Ed. Lamy.