iv 
Contents. 
PAGE 
Some New or Little-Known South African Succulents. 
Part V. By E. Marloth. (Plate viii.) . . . .121 
The Blizzard of June 9-12, 1902. By A. G. Howard. 
(Three text-charts) 129 
The Leaf-spots of Bichardia Albo-maculata, Hook. By W. T. 
Saxton. (Three text-figures) 135 
On the Salivary and Mouth Glands of the Nudibran- 
chiata. By T. F. Dreyer. (Six text-figures) . . . 139 
A List of South African Lacertilia, Ophidia, and Batrachia 
IN the McGregor Museum, Kimberley ; with Field- 
Notes ON Various Species. By J. Hewitt and J. H. 
Power .......... 147 
Note on Double Alternants. By Thomas Muir . . 177 
A Note Concerning the Physical Significance of the 
Mean Diurnal Curve of Temperature. By J. E. 
Sutton 187 
A Note on the Earthquakes of the South African Table- 
land. By J. E. Sutton 195 
A Short Note on the Occurrence of Aspergillosis in 
the Ostrich in South Africa. By James Walker. 
(Plates ix.-x.) 199 
A Preliminary Survey of the Meteorology of Kimberley. 
By J. E. Sutton 205 
Contributions to a Knowledge of South African Oligo- 
CH^TA. — Part I. On a Phreodrilid from Stellenbosch 
Mountain. By Prof. B. J. Goddard and D. B. Malan. 
(Plates xi.-xiii.) ......... 231 
Part II. — Description of a New Species of Phreo- 
drilus. (Plate xiv.) 242 
Contributions to a Knowledge of South African 
HiRUDiNEA. On some Points in the Anatomy of 
MaTsu]jiohdella africana. By Prof. E. J. Goddard and 
D. E. Malan. (Plates xv.-xvii.) 249 
