Till: nlMCJIN AND AMI-.! 1TV OF M-\ 



gougini: mit valleys as they went and carried aim:.' 

 with thorn masses of stone and rock fragments whi !. 

 were finally deposited along tin- melting front or In 

 areas to tho glacier. 17 Glacial streams flowed from tmd.-r 

 the slowly n '< and .-arri.-.l fine detritus and sand 



many miles beyond tin* ice line. eventually de|MMtimr 

 il in deltas or flood plains and burying deep 

 all Mnall ol.j.-ets lyiiiLC upon tho surface. 



The problem of the geographical center from which 



man nally populate the earth i< -till 1111- 



1. Tradition has designated Central Asia as the 



perakm. In Central Asia are found the re- 



mains of sand-buri.-d cities so ancient tliat the \ 



MS concern! IILT them have perished. 11 Moreover, the 



\vil<l progenitors of our domestic animals horses, cat- 



P, goats, swine, dogs, camels, buffalo and fowl 



had their habitations in Central Asia. 



But there are other considerations. Geologists tell 



at the land formation of the present continent of 



>pe underwent many changes in the later Tertiary 



and during the rarly (Quaternary. Coincident with the 



is there seem to have been alternating sub- 



M.i- noes and upheavals of sections of the continent. 



There appears, ho\v<>\< r. to have been a strip of dry land 



fairly constant in it- outline which extended from the 



valley of the Thai d the Rhine in northwi- 



>pe to the pr.--.-nt Maud of Java at the southeast 

 1 It is in this strip of territory that the most 

 important discoveries of prehistoric man have been 

 made. 



<<* figure 16. "Lull. op. 'f.. p, J77. 



S*c Kwuir. op. ri'l.. p. 54: Rrintnn. I' . Karrm mmH /Ynp/r. 1890, 

 pp. r. \.-Tkc /Vinripln of fioHolofy, 1909, pp. 214 JR.. 



