Contents. v 



PAGE 



Two Species of IciiNEUMONiDiE parasitic on Codling Moth in 



Cape Colony. By P. Cameron. .... 337 



Notes on South African Cycads. — I. By H. H. W. Pearson, 



M.A. ........ 341 



On the Early Development of the Appendicular Skeleton 



of the Ostrich, with Bemarks on the Origin of Birds. 



By B. Broom, D.Sc, M.D. . 355 



On some little-known Bones of the Mammalian Skull. By 



R. Broom D.Sc, M.D. . . . . .369 



Notes on the Lacertilian Girdle. By R. Broom, D.Sc, M.D. 373 



On a new Cynodont Reptile (JElurosuchus Browni). By R. 



Broom, D.Sc, M.D. . . . . .376 



On a new South African Triassic Rhynchocephalian. By R. 



Broom, D.Sc, M.D. . . . . -379 



Contributions to the African Flora. By Harry Bolus, D.Sc. 381 



Rock-engravings of Animals and Human Figure, the Work of 



South African Aborigines. By L. Pgringuey, D.Sc . 401 



Undescribed Genera and Species of South African Rhynchota. 



By W. L. Distant. ..... 413 



Discussion of the Errors of Certain Types of Minimum 

 Spirit Thermometers in Use at the Royal Alfred 

 Observatory, Mauritius. By A. Walter, F.R.A.S. . 419 



Note on the Connection between the Rainfall at Durban 



and Mauritius. By T. F. Claxton, F.R.A.S. . . 437 



The Chemical Composition of Berry Wax. By B. de St. J. 



Van der Riet, Ph.D., M.A. . . . .443 



A Property of Axisymmetric Determinants connected with 

 the Simultaneous Vanishing of the Surface and Volume 

 of a Tetrahedron. By Thomas Muir, LL.D. . . 445 



Examination of the Validity of an Approximate Solution 



of A certain Velocity Equation. By A. Brown, M.A. . 459 



