S.A. Assn. for Adv. of Science. 



1917. Pl. 9. 



*^J»-.ii 



•^*U- 



^m. 





.^^-..i^- 



-'i 





1 



Grassveld with nests of Tcniics tr'tiierviiis. 



The estahhshninit uf Thorn Thickets. 



Prof. J. W. Bews —Plant Succession in the Thorn Veld. 



