.I'/if 



INDEX. 



riace-nanies, Aboriyiuai. A survey of (R<jv. J. R. L. Kingon) 



of Africa (Rev. W. A. Norton) 



Pole Evans (Dr. I. P>.), Some photographic illustrations of South 



African vegetation 



Pollination of Cyanclla capcnsis Linn. (Dr. E. P. Phillips) 



PoKTKP. (Dr. Annie), Leucocytogregarines, and their occurrence in 



South Africa 



Potash, Kelp. The collapse of ... 



Potts (Prof. G.), The pepper tree {Schiiuts mollc) in its relation to 



epidemic hay-fever 



Presidential address to Section A ( I^rof. J. T. Morrison) 



Section K (Dr. P. A. Wagner) 



_ Section C 



• Section D 



^ ■ Section E 



• • Section F 



(C. E. Legat) 

 (Prof. E. J. Goddard) 

 (Rev. W. .\. Xortcn) 

 (Prof. T. M. Forsyth) 



President's address 



Presidents of former years . .,. 



Prominence, A, on Jupiter 



Protozoa, Parasitic, found in South African fishes and amphibians 



( Prof. H. B. Fanthani ) 



Pure-line hypothesis, The, and the inheritance of small variations 



(Prof. E. Warren) 



PuTTF.Rii.i. fV. A.), Notes on the morphology and life-history of 



Uroinyccs aloes Cooke 



Pyper (Dr. C), Some engraved stones of the Lydenburg district 



and North-East Transvaal : the occurrence of cup-and" 



ring markings in South Africa 



Quinan, K. P> 



Radioactive colouring of minerals 



Ratliotelephony 



Radium production 



Rand Mines Sanitation Dei)artnR'nl ; charts, photograplis, and reports 



(Dr. A. J. Orenslein) 



— — , The, Social condition of Natives on (Rev. W. F. Hill) 



Rh.E\i;. ( ii. C.), Purpose of education 



Religious beliefs and superstitions of the Xosas (J. ^IcLarcn) 



Report of Council, 1917-18 



Reproductive glands of ostriches. Effect of removal of, on sex- 



cliaracters (Sir A. Theiler and D. Kehoe) 



Research grants 



Rhodesia, I he hcterocerous fauna of (A. J. T. Janse) 



Rhodesian minerals 



ruins, Ihe; by whom built (W. H. Tooke) 



Rich (S. G.), Are the Odonata of economic value? 



, Are the Orthoptera and Neuroptera actual orders or 



conglomerations .'' 

 — , Some features 



PAGE 

 712 

 637 



693 

 500 



335 

 399 



525 



31 



45 



79 



100 



10/ 



121 



I 



ii 



569 



337 



535 



656 



416 



651 



412 



+24 

 534 



587 

 ()37 

 483 

 418 

 xviii 



612 

 216 

 708 

 621 

 492 

 611 



618 



>i the South African Odonata as a 



588 

 217 

 612 



launa 



Ri.xDL (Prof. M. M.), The medicinal springs of South Africa 

 Robinson (E. M.), Bovine contagious abortion in South Africa ... 

 Rock, The engraved, of Loe, Bechuanaland Protectorate (Miss M. 



Wilman) 531 



Royal Society of South Africa 190,216 



Ruthven (Dr. Jane B. H.), Health problems in country districts, 



Transvaal and Orahge Free State 



Suit water as a preventive of epidemic influenza 



Sanitation Department, Rand Alines: chart.s, photographs, and 



reports (Dr. A. J. Urenstein) 



ScHWARZ (Prof. E. H. L.), The desiccation of Africa: the cause and 



the remedy 



400 



449 



587 

 139 



