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

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

THE GLACIALrTHEORIES. 93 present state of things. We must, from a biological point of view, necessarily suppose a subarctic biosphere, adjacent to tbe ice ; this Fig. 2. Zoogeographical map of Europe in the preglacial period. (Orig.) goes over towards the South into a thermophil and at last into a tropical fauna and flora. 1 should like to suggest that the Pleistocene period begins with