VI 



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On the Parasitism of I'seudomonas destructans (Potter). By M. C. 

 Potter, M.A., F.L.S., Professor of Botany in the University of Dur- 

 ham College of Science, Newcastle-upon-Tyne. Communicated by 

 Sir. Michael Foster, K.C.B., Sec. E.S 392 



The Influence of Varying Amounts of Carbon Dioxide in the Air on 

 the Photosynthetic Process of Leaves and on the Mode of Growth of 

 Plants. By Horace T. Brown, LL.D., F.E.S., and F. Escombe, B.Sc, 

 F.L.S. (Plates 5-10.) 397 



On the Influence of an Excess of Carbon Dioxide in the Air on the 

 Form and Internal Structure of Plants. By J. Bretland Farmer, 

 D.Sc, F.R.S., Professor of Botany in the Royal College of Science, 

 London, and S. E. Chandler, A.R.C.S 413 



No. 465. 



Preliminary Report on the Recent Eruption of the Soufriere, in St. 

 Vincent, and of a Visit to Mont Pelee, in Martinique. By Tempest 

 Anderson, M.D., B.Sc, F.G.S., and John S. Flett, M.A., D.Sc, 

 F.G.S. Communicated by the Secretaries of the Royal Society. 

 Received August 11, 1902.* (Plates 11-13.) 423 



On the Toxic Properties of the Saliva of certain " Non-poisonous " 

 Colubrines. By A. Alcock, M.B., LL.D., F.R.S., Professor of 

 Zoology, and Leonard Rogers, M.D., B.S. (Lond.), M.R.C.P. F.R.C.S., 

 Officiating Professor of Pathology in the Medical College of Bengal . 446 



The Influence of High Pressures of Oxygen on the Circulation of the 

 Blood. By Leonard Hill, M.B., F.R^.S., and John J. R. Macleod, 

 M.B., Mackinnon Research Scholar of the Royal Society 454 



The Influence of an Atmosphere of Oxygen on the Respiratory Ex- 

 change. By Leonard Hill, M.B., F.R.S., and John J. R. MacJeod, 

 M.B., Mackinnon Research Scholar of the Royal Society 455 



Effects of Strain on the Crystalline Structure of Lead. By J. C. W. 

 Humfrey, B.Sc. (Vict.), 1851 Exhibition Research Scholar (Cniversity 

 College, Liverpool), St. John's College, Cambridge. Communicated 

 by Professor Ewing, F.R.S ^. 462 



On the Correlation between the Barometric. Height at Stations on the 

 Eastern Side of the Atlantic. By Miss F. E. Cave- Browne-Cave, 

 Research Student of Girton College, Cambridge, with some assistance 

 from Karl Pearson, F.R.S. , University College, London 465 



No. 466. 



On the Movements of the Flame in the Explosion of Gases. By Harold 

 B. Dixon, M.A., F.R.S 471 



On the Measurement of Temperature. Part I.— On the Pressure Co- 

 efficients of Hydrogen and Helium at Constant Volume and at 

 different Initial Pressures. Part II. — On the Vapour Pressures of 

 Liquid Oxygen at Temperatures below its Boiling Point on the Con- 

 stant Volume Hydrogen and Helium Scales. Part III. — On the 

 Vapour Pressures of Liquid Hydrogen at Temperatures below its 

 Boiling Point on the Constant Volume Hydrogen and Helium Scales. 

 By Morris W. Travers, D.Sc, George Senter, B.Sc, and Adrien 

 Jaquerod, D.Sc Communicated by Professor William Ramsay, F.R.S. 484 



