Chimpanzee Man 



Orang-Utan 



Siavmng 



Spider Movkey 



Howler Monkey 



ANTHROPOIDS 



Gnereml 



Capuchin 



f 



^^^ n/^^ Marmoset 



"■'■.»,. 



V 



?oito 



■S' 



% 



Green Monlmy 



Baboon ^i^O^ 

 Miicaqtm r^^ 



f 



Tarsms 



.# 



•^^ 



Lemur 



frontispiece 



Evolution of the Hand 



(After W. K. Gregory) 



