Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 18. (Budapest 1921)

Éhik, Gy.: The glacial-theories in the light of biological investigation

THE GLACIALrTHEORIES. 101 Fig. 6. Biogeological section of the northern Hemisphere. (Taken from the region of about the 20t

h E. mer. of Greenwich. Orig.) 1. The Polar ice. 2 a. The fauna of the temperate Zone. 2. The true arctic fauna. 3. Thermophil fauna. 4. Tropical fauna. 5. Steppe fauna. 6. Forestal fauna. Between the horizontal black lines are the Pleistocene and Holocene strata of Europe and between the vertical black lines the same strata of Hungary.