VI CONTENTS. 



Plate To face 



No. Page 



XXX. A new apple tree canker 271 



XXXI-XXXIII. Veld-burnino experiments at Groenkloof. 



Pretoria 2q8 



XX.XIV.-XXXVIII. The Genus Borboiiia Linn., Leguminosse ... 410 



XXXIX. Three noteworthy species of plants from South Africa 430 

 XL.-XLIII. The Engraved Rock of Kopong and Loe, 



Bechuanaland Protectorate 446 



