THE GL4CÍAL-THE0RIES. 
101 
r 
Fig. 6. Biogeological section of the northern Hemisphere. (Taken from the region of 
about the 20- th 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. 
