II. Mean Monthly and Annual Relative Humidity Charts of the United States, by Kenneth S. Johnson, Harvard 12. A New Solvent for Gold (Title only), by James Moir, D.Sc. 13. Magnetic Observatories in South Africa, by Professor J. C. 15. Variations in the Geometrica Group of South African Tortoises, by Professor J. E. Duerden, Ph.D., A.R.C.S. 178 18. On Some Aspects in the Vegetation of South Africa 19. The Negro in America (abstract), by T. Lane Carter 21. Modjadje: A Native Queen in Northern Transvaal: An 25. Note on Fusicladium: Affecting Apples and Pears in Cape Colony, by J. B. Pole Evans, B.A., B.Sc. 26. The Petrography of the Rocks surrounding the Diamond- 28. Contributions to our Knowledge of the Stone Age of ... 29. The Black Rust of Wheat (Title only), by J. B. Pole 30. Infectious Experiments with Uredo Graminis, Pers (Title only), by J. B. Pole Evans, B.A., B.Sc. 32. Systematic Description of the Transvaal Plants of the 34. The Realm of Alfalfa, by S. Hodder, F.R.C.T.... 35. Locust Birds of the Transvaal (abstract), by F. Thomsen, 36. Notes on Insect Pests in the Transvaal during the Past 39. Irrigation and Inter-Colonial Co-operation, by W. L. Strange, M. Inst.C.E., Director of Irrigation, Transvaal 354 40. Polycyclic Systems of Current Distribution, by Professor 371 380 43. An Underground Traverse, by A. E. Payne 44. Water Rating, by G. W. Herdman, M. Inst.C.E. 45. Irrigation in Egypt and in South Africa, by F. A. Hurley, 46. Sanitary Science, by James S. Dunn, A.R.S.I., A.R.I.P.H. 454 47. On the Construction of School Buildings (Title only), by ... 505 516 58. Agricultural or Land Banks, and Agricultural Co-opera- tion in relation to the requirements of the Transvaal 535 ... List of Individuals, Societies, &c., receiving Copies of 616 ... ... 625 ILLUSTRATIONS. Sutton, Fig. 1. Typical Barometer Curves ... ... ... 5. Component Wind Directions at Kimberley ... 6. East London... Rawson, Provisional Chart of Isobars, Transvaal, February. May Innes, Fig. 1. Mean Annual Isobars, South Africa Page 14 15 16 17 23 24 ... Diagram 1. B. R. 21st May-5th June, 1905 77 78 (Cape ... Map I. South Africa, Thursday, June 21st, 1906 ... ... 83 ... 84 ... ... ... ... ... ... 85,86 87 88 89 92 Saturday, June 23rd, ... Sunday, June 24th, Wind-Frequency Resultants (Polar Co ordinates) Wind-Frequency Resultants (vide Table A.) 131 Movement Johnson, U.S.A. Weather Map, Relative Humidity, January 131 162 Johnson, U.S.A. Weather Map, Relative Humidity, July Marloth," Pine on the Slopes of the Devil's Peak 268 280 Pole Evans, Fusicladium dendriticum and F. pirinum, Fckl. Rastall, Fig. A. Section of De Beers Mine C. Succession and Thickness of Rocks in dif ferent Shafts Johnson, Plate 1. Primitive Group from Leijfontein, Herbert 301 4. Advanced Group from Junction of the Reit 302 ... 303 ... ... 304 305 306 307 5. Advanced Group from Rietpan, Boshof ... 7. Advanced Group from Griquatown Rock- ... 8. Advanced Group from Kranzfontein Rock- ... ... Strange, General Plan of Chenab Canal ... Distribution 308 365 377-379 Kestner, Figs. 1-5. Illustrating Theoretical Investigations regarding Ferro-Concrete 389-397 Payne, Figs. 1-4. Illustrating an Underground Traverse 403-416 Herdman, Fig. 1. Waterworks Expenditure |