Cytology, with special reference to the metazoan nucleus - Agar, W. E. (Wilfred Eade), 1882 -1951 (Macmillan and Co., limited, 1920)

Cytology, with special reference to the metazoan nucleus - Agar, W. E. (Wilfred Eade), 1882 -1951 (Macmillan, 1920)

Däggdjuren, jemte inledning till ryggradsdjuren - Lilljeborg, Wilhelm, 1816 -1908 (W. Schultz, 1874)

Dahlak: with the Italian National Underwater Expedition in the Red Sea - Baschieri Salvadori, Francesco, 1921 - (Essential books, 1957)

The Danish Ingolf-Expedition - Ingolf (Cruiser) (H. Hagerup, 1899)

The Danish Ingolf-Expedition - Wandel, C. F. 1843 -1930 (H. Hagerup, 1899)

The Danish Ingolf-Expedition - Ingolf (Cruiser) (H. Hagerup, 1900)