1925 viii, 180 p., 3 figs, paperbound (original printed covers). Travaux de la Station Biologique de Roscoff. Scarce.
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.