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



1917. Pl. 8. 



(a) Subsequent species growin,^- up underneath the Pioneer Acacia. 



vw- •.;? 



^J 



(b) Further stage in succession. The Pioneer Acacia lieing killed b}- 



subsequent species. 



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



