CONTENTS. 
Contributions to our Knowledge of the Freshwater Algae of Africa : 
3. Freshwater Algae (exclusive of Diatoms), mainly from the 
Transkei Territories, Cape Colony. By F. B. Fritsch, D.Sc. 
(Professor of Botany, East London College, University of London), 
and Miss E. Stephens, B. A. (South African College, Cape Town). 
(With 29 figures in the text) . . 1 
A Note on the Whales Frequenting South African Waters. By 
Dr. L. PiiRiNGUEY. (With Plate I) 73 
Notes on Some South African Entomophthoraceae. By S. H. 
Skaife. (With Plates II— IV) 77 
Overgrowths on Diamond. By J. K. Sutton .... 87 
