CONTENTS. 
PAGE 
A Note Concerning the Physical Significance of the Mean Diurnal 
Curve of Temperature. By J. R. Sutton, Sc.D., F.R.S.S.Af. . 187 
A Note on the Earthquakes of the South African Table-land. By 
J. R. Sutton, Sc.D., F.R.S.S.Af 195 
A Short Note on the Occurrence of Aspergillosis in the Ostrich in 
South Africa. By James Walker, M.R.C.V.S. (Plate IX.-X.) 199 
A Preliminary Survey of the Meteorology of Kimberley. By J. R. 
Sutton, Sc.D., F.R.S.S.Af 205 
Contributions to a Knowledge of South African Oligochaeta. — Part 
I. On a Phreodrilid from Stellenbosch Mountain. By Prof. 
E. J. GoDDAED, B.A., D.Sc, and D, E. Malan, M.A. (Plates 
XI.-XIII.) 231 
Part II. — Description of a New Species of Phreodrilus. 
(Plate XIV.) 242 
Contributions to a Knowledge of South African Hirudinea. On 
Some Points in the Anatomy of Marsupiohdella africana. By 
Prof. E. J. GoDDARD, B.A., D.Sc, and D. E. Malan, M.A. 
(Plates XV.-XVII.) 249 
A New Species of Haematoxylon (Leguminosae-Caesalpineae) from 
Great Namaqualand. By Edith L. Stephens, B.A., F.L.S. 
(Plate XVIII.) 255 
Notes on the Pollination of Some South African Cycads. By 
G. Rattray, D.Sc 259 
Note on an Over-looked Theorem regarding the Product of two 
Determinants of Different Orders. By Thomas Muir, LL.D. . 271 
A Synopsis of the Species Loto7ionis, Eckl. & Zeyh., and Pleio- 
spora, Harv. By R. A. Dummer. (Plate XIX.) ... 275 
Note on the Newcomb Operators used in the Development of the 
Perturbative Function. By R. T. A. Innes .... 337 
President's Address. The Antiquity of Man. By L. Peringuey, 
D.Sc, F.Z.S., F.E.S., &c i. 
