X 



Origin of life, synthesis by sunlight in relation to (Moore and Webster), 163. 

 Ovaries, uterus, and mammary glands, functional correlation between (Hammond and 

 Marshall), 422. 



Pixell (H. L. M.) Notes on Toxoplasma gondii, 67. 

 Plasmodium cephalophi, sp. nov. (Bruce and others), 45. 



Porter (A. W.) and Edridge-Green (F. W.) Negative After-images and Successive 



Contrast with Pure Spectral Colours, 190. 

 Poulton (E. P.) See Graham and Poulton. 



Primula sinensis, genetics of tetraploid plants in (Gregory), 484. 

 Pulse, resonance of tissues in transmission of (Hill and others), 255. 

 Pulse wave and measurement of arterial pressure (Hill and others), 344. 



Reflex phenomena, question of fractional activity in (Brown), 132. 



Salicin hydrolysis by enzyme action, optimum temperature of (Compton), 245. 

 Schryver (S. B.) Investigations dealing with the Phenomena of "Clot" Formations. 



Part II. — The Formation of a Gel from Cholate Solutions, etc., 366. 

 Sclater (P. L.) Obituary Notice of, iii. 

 Scott (D. H.) On Medullosa pusilla, 221. 

 Sea-urchins, experiments in crossing (MacBride), 240. 

 Seeds, influence of carbon dioxide on maturation, etc. (Kidd), 408, 609. 

 Sex ratio in Mus rattus, variations in, associated with unusual adult female mortality 



(White), 335. 



Stephens (J. W. W.) A New Malaria Parasite of Man, 375. 

 Synthesis by sunlight and origin of life (Moore and Webster), 163. 



Thiosulphate oxidised by bacteria (Lockett), 441. 



Thomson (J. G. and D.) The Growth and Sporulation of the Benign and Malignant 

 Tertian Malarial Parasites in the Culture Tube and in the Human Host, 77. 



Tissue growth in autogenous and homogenous plasma (Walton), 452. 



Toxic substances, minimal lethal dose of, and relationship to body weight (Dreyer and 

 Walker), 319. 



Toxoplasma gondii (Pixell), 67. 



Transpiration, method of studying (Darwin), 269 ; effect of light on (Darwin), 281. 



Tristichaceae and Podostemaeese, lack of adaptation in (Willis), 532. 



Trypanosoma brucei, description of strain from Zululand (Bruce and others), 493, 511, 

 526. 



Trypanosoma simice, susceptibility of various animals to (Bruce and others), 48 ; 



development in Glossina (Bruce and others), 58. 



Trypanosome causing disease in Man in Nyasaland. — The Mzimba strain (Bruce 



and others), 26 ; susceptibility of animals to Human strain (Bruce and others), 35 ; 



development in G. morsitans (Bruce and others), 516. 

 Trypanosome diseases of domestic animals in Nyasaland. III. — Trypanosoma pecorum 



(Bruce and others), 1. 

 Trypanosomas causing dourine (Blacklock and Yorke), 89. 



Uterus, action of drugs on isolated human (Gunn), 551. 



Venom of Echis carinatus, nature of coagulant of (Barratt), 177. 



Wager (H.) The Action of Light on Chlorophyll, 386. 

 Walker (E. W. A.) See Dreyer and Walker. 



Walton (A. J.) Variations in the Growth of Adult Mammalian Tissue in Autogenous 

 and Homogenous Plasma, 452. 



