EVOLUTION OF MAN 



247 



FIG. 11.16. Diagram of human evolution during the Pleistocene. 

 Ehr., Ehringsdorf; Font., Fontechevade; Mf. C, Mt. Carmel; Rhd., 

 Rhodesian; Sal., Saldanha; St., Steinheim; Sw., Swanscombe. 



repeatedly, the more we learn of hominids the more we appreciate that 

 they have always been a variable lot. Like the time-honored tree, our dia- 

 gram is hypothetical, but it seems to represent better than does the tree 

 what we are learning both about the history of man's evolution and about 

 the factors and forces operative in evolution in general. 



At various points in the ascending pattern (Fig. 11.16) we have inserted 



