THE OllDOVIClAN SYSTEM 



127 



j. 

 E 



B >= 



S,c = 





al3 



KSJ 



Ill 



::- 

 2-* 

 - f.~ 



- c 



S 





- r-r - 

 7 "- : 

 Illl 



II 



f ^~- 



BnSO 



