stone Age in Iiidicnia 



117 



Fig-. 6. Celt of smoothed stone. Neolithic type. Original. 



The line between the two stages of aboriginal life in the stone age, 

 known as the early and late, is well drawn by the Encyclopedia Ameri- 

 ana, 1920 edition, as follows: 



"The art of polishing stone implements was introduced near the 

 beginning of the Neolithic period. It is on this basis, — the absence of 

 polished stone implements in the deposits of the Old Stone Age and their 

 presence in those of the young Stone age, — that the names Paleolithic 

 and Neolithic are given." 



