Smithsonian Report, 1 91 3.— Hrdlicka. 



Plate 3. 



(1.) Pithecanthropus erectus, Skullcap, from Above (One-half Natural Size). 

 (2.) Anthropopithecus troglodytes, Adult Female Skull, from Above iTwo-thirds 



Natural Size). 



(After Dubois, Smithsonian Report for 1898.) 



