CONTENTS. 
PAGE 
The "Plathander" {Xenopus laevis). By T. F. Dreyee, B.A., 
Ph.D. (With nine text-figures) . . . . . .341 
On Variations in the Magnetic DecHnation at Bloemfontein. By 
W. A. Douglas Eudge, M.A. (With three text-figures) . . 357 
Note on the Vertebral Column of the Bushman Race of South 
Africa. By R. B. Thomson, M.B., F.R.S.E., South African 
College. (With four text-figures) 365 
Notes on N'Gamiland. By A. G. Stigand. (With map in text) . 379 
Note on Clebsch's Theorem regarding the Second Set of Jacobians 
derived from n -\- 1 Homogeneous Integral Functions of n 
Variables. By Thomas Muir, LL.D. . . . . .393 
On some Fossil Fishes from the Diamond-bearing Pipes of Kim- 
berley. By R. Broom, M.D. (Plates XX.-XXII.) . . . 399 
Minutes of Proceedings xv 
List of Officers, Fellov^s, and Members xxxvi 
Additions to the Library during 1912 xli 
