SKULLS 



J^iiJ. 1- 



of the Modern Man. 



5^uj. 2. 



of the Proto Man (found in La 

 Chapelle-aux-Saints) 



m- ^■ 



/^ --—^X Qf the Proto Man (found in 

 f '"' N ^\ Neandertal) 



?fiQ- 4. 



ilig. ^• 



5ig- «• 



•;^i9. 'J 



of the Proto Man (found in Spy) 



of the Ape Man (found in Trinil) 



of a Young Gorilla 



of an Old Gorilla 



35 



