HEREDITY 



169 



Fig. 101. — Diagram showing arrangement of hones in the hantl or foot 

 of various animals : 1 , man ; 2, gorilla ; 3, orang ; 4. dog ; f), sea lion ; G, 

 dolphin; 7, bat; 8, mole; 9, Ornithorhynchus. (After Haeckel.) 



