foot have been found, these hybrids have proven to us the 

 characteristics of their ancestors. 



So great is the Hability of hybrids to exhibit atavism that 

 there is a possibiHty that if men were crossed with anthropoid 

 apes some atavism might appear which would reveal to us the 

 characteristics of our ancestors. 



LOWER JAWS 



of the Caucasian 



of the Negro 



of the Australian Aborigine 



of the Proto Man 



and 



of the Ourang-Outang 



Besides the finds already made, there will doubtless be 

 discovered many more of the remains of creatures that will 

 exhibit the different stages of the development of recent man. 



Also it is possible that the entire carcass of such creatures 

 may be found in a complete state of preservation. 



In Siberia has been found the entire carcass of a mammoth 

 frozen in ice — now on exhibition in the museum of St. Peters- 



37 



