124 



Minnesota Academy of Science 



Homo Heidelbergensis. 



A most remarkable jawbone was discovered near Heidel- 

 berg in 1907. This bone was associated in the same stratum 

 with several kinds of extinct species, such as Elephas antiquus, 

 allied to the existing African elephant, rhinoceros etruscus, 

 two species of bear, a lion not distinct from the existing Afri- 

 can lion, a dog almost identical with the present wolf of the 

 Pyrenees, a boar, horse, bison, and others. The entire group 

 shows that the age of the jawbone was near the upper part of 

 the Pliocene, or at the bottom of the Pleistocene. 



Fig. 3. 



Fig. 3. A, outline of the Mauer jawbone ; B, an unusually 

 large jaw of an ancient Briton. (From Duckworth, page 11.) 



Fig. 4. Side view of the Mauer jaw. (From Origin and 

 Antiquity of Man, by Prof. G. Frederick Wright, 1912, page 

 310.) 



