CONTENTS. V 



PAGE. 



Atomic weight of nebulium. . . ... ... ... 499 



A' note on the pollination oi Cyamlla cupensis Linn. : E. P. Phillips, 



M.A., D.Sc, F.L.S. ... soo 



The bacterial blight of beans: Bacterium phaseoli Erw. Sm. : Ethel 



M. DoiDGE. M.A., D.Sc, F.L.S'. 50J 



Alcohol from Seaweed ... 305 



L^nrealised Factors in Native economic development : Rev. ]. R. L. 



KiNGON. M.A.. F.R.S.E., F.L.S. ... ... ... 506 



The pepper tree (Schiuits iiiolli') in its relation to epidemic hav 



fever : Prof. G. Potts, M.Sc, Ph.D 52*5 



The engraved stone of Loe, Hechuanaland Protectorate : Mi§,s M. 



WiLMAN (Plates 12-15) 531 



Radium production 534 



Ageing of chemical elements _. ... 534 



The pure-line hvpothes's and the inheritance of small variations : 



Prof. E. Wakren, D.Sc. (Plate 16) 535 



Note on the Equatorial Sundial at the Castle, Capetown : J. Lunt. 



D.Sc. F.I.C. (Plate 17) 568 



A Jovian prominence 5^9 



Liquid hydrocyanic acid for fumigation 560 



Additions and corrections to the recorded flora of the Transvaal and 



Swaziland : J. Burtt-Davv, F.L.S.. F.R.G.S 570 



SIR WILLIAM CROOKES 572 



Some experiments used in the rudimentary teaching of botany: 



Rev. F. C. KoLBfE. D.D.. D.Litt 575 



Economic natural historv. and whv it should be taught in schools : 



F. W. FiTzSiMONs.'F.Z.S., F.R.M.S. ... 580 



Problems of degeneration as represented by the ostrich : Prof. J. E. 



DuEFDEN. M.Sc. Ph.D.. A.R.C.S. (Title only) 587 



The pineal bcdv in the ostrich : Prof. T. E. Duerden, M.Sc, Ph.D., 



A.R.C.S. (Title only) _ ... 587 



Charts, photographs, and reports of the Rand Mines Sanitation 



Department: A. J. Orenstein, M.D.. ALR.C.S., L.R.C.P. (Title 



only) 58I7 



Intoxication by gastrophilous larvae: G. van de Wall dei Kock, 



M.R.C.V.S. (TW^ only) 587 



On the eradication of venereal diseases : R. T. A. Innes, F.R.A.S., 



F.R.S.E. (Title only) 587 



Some features of the South African Odonata as a fauna: S. G. 



Rich, M.A., B.Sc 588 



Crossing the North African and South African ostrich: Prof. J. E. 



DuERUEN. M.Sc. Ph.D., A.R.C.S. (Title only) 589 



The natives in the larger towns : J. S. Marwick 590 



Paper yarns 610 



Are the Odonata of economic value? S. G. Rich, M.A., B.Sc. ... 611 

 Drug treatment in Nuttalliosis of equines : G. van de Wall de 



KocK. M.R.C.V.S. (Title only) 612 



Bovine contagious abortion in South Africa: E. M. Robinson, 



M.R.C.V.S. (Title only) ... 612 



On certain changes in the external sex-characters of ostriches, 



occurring after removal of the reproductive glands: Sir A. 



Theiler, K.C.M.G., D.Sc, and D. Kehoe, M.R.C.V.S. (Title 



only) 612 



Spectrography of seaweed ashes 612 



A preliminarv investi.eation into a disease attacking young Cupressus 



plants: Miss A. M. Bottomley, B.A. (Plates 18-21) 613 



Are the Orthoptera and Neuroptera actual orders or conglomera- 

 tions? S. G. Rich, M.A., B Sc 618 



Rhodesian minerals 621 



Epie poetry in French literature : Prof. R. D. Nauta 622 



Suggestion for the education of public opinion on Native affairs : 



M. S. Evans, C.M.G., F.Z.S. ( Title only) 637 



Social conditions of Natives on the Rand : Rev. W. F. Hill, M.A., 



(Title only) 637 



