CONTENTS. 



PAGE. 



Native education in the Transkei : Rev. J. R. L. Kingon, M.A., F.L.S. 447 

 Thermal conductivity of Quartzite : Prof. R. A. Lehfeldt, B.A., 



D.Sc 495 



The Boskop skull 495 



Efxamination of the bark and seed oil of Trichilia emetica: J. S. 



JAMIESON, F.I.C., F.C.S 496 



Cosmic evolution 498 



The Cedara Plantation : J. S. Henkel 499 



A short note on Bryophyta of South Africa : T. R. Sim (Precis) . . 505 

 Note on Polyporus lucidus Leyss., and its effect on the wood of the 



vi^illow: P. A. VAN MR BvL, M.A., D.Sc, F.L.S. (Pis. 12-16 and 



six text figures) 506 



Ground Rainbovi^s 515 



The progress of the Natal sugar industry from its inception in 1851 



up to 1915 : W. P, Tucker 5 1<^' 



British Association 520 



Vocational Training: R. T. A. Innes, F.R.S.E., F.R.A.S. (Precis) 521 



Conference of scientific societies 521 



Comet 1917a 527 



Geology and the war 527 



The medicinal springs of South Africa : Prof. M. M. Rindl, Ing.D. 



(with map and tzvo series of tables) 528 



Transmission of sound waves 55^ 



Some financial features of the Canadian educational system : Rev. W. 



Flint, D.D., 553 



Transactions of Societiks 564 



Townebeud, Taylor <fe Sna&hall, Printftrs. Cape Town. 



