forest growth to indicate an age of at least 1,000 years. But it 
1s well known that it requires several generations of trees to 
pass away before the growth on a deserted clearing comes to 
have ligne’ &xisted ; that they must have been populous and 
ave lived under some established government ; while there are 
“ that they practised agriculture largely, as indeed they 
ast have done to have supported a population capable of 
thousand, _In their habits, customs, religion, and arts, they 
strikingly from all the Indian tribes; while their love 
* Wilson’s “ Prehistoric Man,” 3d ed., vol. ii, pp. 123~130. 
