xl 



INDEX. 



PAGE 

 Peace, British and American proposals for a league of( Rev. R. Balm- 



forth) ... 2go 



PiiALiNG ( H.), On the effect of vegetation on the rainfall of South 



Africa 142 



Perouj (Dr. A. I.), Agricultural education in South Africa 201 



, The volatile acidity of wine : particularly that 



produced by pure cultures of j'east 405 



Pettey (F. W. ). Hermaphroditism in Metanastria pithyoauiipa ... 425 

 Philology, Native, The need and value of academic study of ( Rev. 



W. A. Xorton ) 194 



Philosophical limits of science, The (Rev. Dr. S. R. Welch) ... 326 

 Phonetic analysis and comparison of African languages ( Rev. W. A. 



Norton ) 421 



Phosphoric oxide content of maize and maize milling products and 



its correlation with the vitamine content (Dr. H. H. 



Green) 519 



PhysicS' Terrestrial : Prt)ljlems that require the attention of South 



African physicists (Prof. j. T. Morrison) 433 



Physiologv, A plea for greater attention to, in the teaching of zoology 



(Prof. E. J. Goddard) 464 



Phytochemical research (Prof. AI. M. Rindl ) 48 



Place names. Bantu, in the Cape Province (Rev. J. R. L. Kingon) . . . 556 



Plant succession, The, in the Thorn veld (Prof. J. W. Bews) ... 153 



toxins: a cause of infertility in soils (A. Stead) 439 



Plants in the Cape Province, Fibre produced from (J. Leighton) . . 443 



, The ascent of sap in (Prof. H. A. Wager) 547 



Plough. The ( W. S. H. Cleghorne ) 464 



Potash from kelp in America 289 



, Sea bamboo as a source of ( G. F. Britten) 105 



Power (J. H.), Some notes on the colouration of reptiles and amphi- 

 bians found near Kimberley, C.P. 263 



Presidential address to Section A (Prof. W. N. Roseveare) 33 



B (Prof. M. M. Rindl) 4^ 



C (J. Burtt-Davv ) 64 



D (Rev. B. P. J. Marchand) ... 83 



E (Rev. N. Roberts) 88 



President's address i 



Presidents of former years xiii 



Protein, The place of, in nutrition (Dr. J C. Ross) 350 



Protozoa, Parasitic, in relation to the war (Prof. H. B. Fantham) 297 



Proverbial sayings of the Bantu ( T. McLaren) 330 



Psychological consideration of some sense defects (Rev. Dr. F. C. 



Kolbe ) 548 



Radiology, The scope of (J. S. van der Lingen ) 354 



Rainfall, Cannonading and 242 



of South Africa, Effects of vegetation on (H. Pealing) ... 142 



Rectum, The respiratory, of the nymph of Mesogomphus (S. G. 



Rich) 426 



Refrigerators, Mechanical (H. W. Bull) 464 



Report of Council, 1916-1917 xxviii 



Reptiles and amphibians found near Kimberley, Some notes on the 



colouration of (J. H. Power) 263 



Research grants 259 



• , National, in America 271 



■ , Phytochemical (Prof. M. M. Rindl) 48 



, Vermian parasitological, with reference to South African 



domestic and native animals (C. S. Grobbelaar) ... 243 



Respiratory organs, The, of a Notonectid (S. G. Rich) 453 



rectum. The, of the nvmph of Mesogomphus (S. G. 



Rich) ... ' 426 



