INDEX. 



439 



Nichols, Dr. J. K., Some aspects of 



Empire wool production, 417*. 

 Nitrate deposit.s in .South-west Africa, 



by Prof. J. Smeath Thomas, .318. 

 Nitrogenous excretion in Xenopus laevis, 



by Dr. H. Zwarenstein, 374. 

 Nomenclature and chemistry of Euphorbia 



virosa, by Dr. R. Marloth, 390*. 

 Norton, Father W. A., Native lore 



among the Basuto, 3fi7*. 

 Nutiition of cells growing in vitro, by 



E. N. Willmer, 374*. 



O'Connor, A. J., and Dr. I. J. Craib, 



Silvicultural investigations into wattle 



cultivation, 399*. 

 Oesee, Dr. 0. A., Interpretation of 



psychological experiments from a 



typological standpoint, 381, 429. 

 Ogg, Prof. A., Crystalline structure of 



alkaline sulphates, 311*. 

 Ogg, Dr. W. G., Value of rapid methods 



in chemical examination of .soils, 419. 

 Ogilvie, a. 6., Report of committee on 



geography of Tropical Africa, 3.55*. 

 Olfactory and visual reactions of Natal 



fruit-fly .... by Dr. L. B. Ripley and 



G. A. Hepburn, .341*. 

 Origin and evolution of South African 



flora, Discussion on, 387. 

 OsBORN, W. B.,. . . Ultra-violet content 



of South African sunlight, 374*. 



Paradoxopteris . , ., by W, N. Edwards, 



384, 430. 

 Parasitic protozoa found in South Africa, 



by Prof. H. B. Fantham, 335. 

 Parsons, Hon. Sir C, Steam turbine 



plant . . ., 36.3, 428. 

 Pasture management, Studies in, by 



R. R. Staples, 421*. 

 Pear, Prof. T. H., Relation between 



general and special iiaining in the 



a cquisition of skill, 308. 

 Felham, R. a.. Trade between England 



and West Africa during early years of 



eighteenth century. 350. 

 Phenomena of so-called fusion, bv Prof. 



G. Dawes Hicks. 378, 429. 

 Phuxips, Dr. E, P.. , . . Flora of environs 



of Pretoria, 393. 

 Phillips, Dr. J. F. V., Some important 



vegetation communities in Central 



Province of Tanganyika Territory, 394. 

 Tsetse problem in Tanganyika 



territory . . ., 336. 

 Philpott, S. J. F., Apparent periodicities 



in the work curve, 383. 

 Physical influences in human geography 



of South Africa, by Prof. .J. H. Welling- 

 ton, 355*. 



Physiological anil lytological studies in 



genus Monascus, by Mi.s8 E. M. Youne. 



393*. 

 Physiolr)gical study of concentric ring 



blotch of Citrus, by J. E. van der 



Plank, 395. 

 Phy.sioloi/i/ the basis of treatment, bv Prof. 



W. E. i)ixon, 164. 

 PhysopsLs Africana distinct from I.sodora, 



by Dr. F. (i. Causton, 337*. 

 Problems of the South African sector of 



Antarctica, by F. Debenham, 348. 

 Plank, J. E. van der, Physiological 



study of concentric ring blotch of 



Citrus, 395. 

 Plant, Prof. A., Anti-dumping regula- 

 tions of the South African tariff. 357*. 

 Plummer, Prof. F. E., Memoranda on 



teaching of geography in South Africa, 



352. 

 Porter, Dr. Annie, Hookworm problem 



in South Africa, 337. 



South African larval flukes, 337. 



Power. J. H., South African Amphibia 



. . ., .340. 

 Price, B., Compressed air supply on the 



Rand, 364*. 

 Priestley, Prof. ,1. H.. From lake to 



veld . . ., 396*. 

 Movement of water and solutes in 



the tree, 385, 430. 

 Principles of glacial tectonics, by Dr. G. 



Slater, 322. 

 Problem of the Rhenoster bush, bv Miss 



M. R. Levyns, 386*. 

 Professional education of South African 



natives, by D. D. T. Jabavu, 409. 

 . Proper motions in the Greenwich a.stro- 



graphic zcne, by Sir F. Dyson, 312. 

 Proposed tunnel under La Manche, by 



Prof. P. F. Kendall, 425. 

 Protozoa found in South African .soils, 



by Prof. H. B. Fantham, 334. 

 Pryde, J., Present state of chaos in 



muscle chemistry, 373*, 429. 

 Psychological studv of accident-prone- 



ness, by E. Fainier, 378*, 429. 

 Psychological test.s in relation to educa- 

 tion and vocational guidance. Discus- 

 sion on, 378. 

 Public regitlation of wo</es in Great 



Britain, by Prof. H. Clay, 119. 



Quadruplet structure of spark spectrum 

 of meicury, by Dr. S. M. Naude. 314. 



Quantitative chemical analvsis bv X-ravs 

 . . ., by Prof. G. Hevesy, 314'. 



Racial crossing, by Prof. R. R. Gates, 



367, 429. 

 Racial drifts in Africa and Europe, by 



Prof. H. ,J. Fleure, 366, 429. 



