VI 



PAGE 



Selective Permeability : The Absorption of Phenol and other Solutions by the 

 Seeds of Hordeum vulgare. By Adrian J. Brown, F.E.S., and Frank Tinker, 



M.Sc 373 



Methods of Eaising a Low Arterial Pressure. By W. M. Bayliss, F.E.S 380 



No. B 618.— January 1, 1917. 



Man's Mechanical Efficiency in Work Performance and the Cost of the Movements 

 Involved (Treated Separately). By J. S. Macdonald, Professor of Physiology, 

 Liverpool. Communicated by Prof. C. S. Sherrington, F.RS 394 



The Typical Form of the Cochlea and its Variations. By Henry J. Watt. Com- 

 municated by Prof. D. Noel Paton, F.RS 410 



No. B 619.— March 1, 1917. 



The Role of the Phagocyte in Cerebro-spinal Meningitis. By Cresswell Shearer, 

 M.D., D.Sc, F.R.S., and H. Warren Crowe, M.D., Military Hospital, Devon- 

 port. (Plates 13 and 14) 422 



On the Toxic Action of Dilute Pure Sodium Chloride Solutions on the Meningo- 

 coccus. By Cresswell Shearer, M.D., D.Sc, F.RS., Military Hospital, Devon- 

 port. (Plate 15) 440 



Croonian Lecture : The Respiratory Process in Muscle . and the Nature of 

 Muscular Motion. By Dr. W. M. Fletcher, F.RS., and Prof. F. G. Hopkins, 

 F.RS 444 



No. B 620.— May 10, 1917. 



Morphological Studies in the Life-Histories of Bacteria. By Edward C. Hort, 



F.E.C.P. Edin. Communicated by J. Bretland Farmer, F.RS. (Plates 16 to 20) 46$ 



No. B 621.— June ;, 1917. 



Some Effects of Organic Growth-Promoting Substances (Auximones) on the 

 Growth of Lemna minor in Mineral Culture Solutions. By W. B. Bottomley, 



M.A., Professor of Botany, University of London, King's College. Communi- 

 cated by F. W. Oliver, F.R.S. (Plates 21 and 22) 481 



Some Effects of Organic Growth-Promoting Substances (Auximones) on the Soil 

 Organisms concerned in the Nitrogen Cycle. By Florence A. Mockeridge, 

 B.Sc, King's College, London. Communicated by F. W. Oliver, F.R.S 508- 



No. B 622.— August 1, 1917. 



On the Causes Responsible for the Developmental Progress of the Mammary Glands 

 in the Rabbit During the Later Part of Pregnancy. By J. Hammond, M.A., 

 Captain, Norfolk Regiment. Communicated by J. Barcroft, F.R.S. (Plate 23) 534 



On the Post-G2strous Changes occurring in the Generative Organs and Mammary 

 Glands of the Non-Pregnant Dog. By F. H. A. Marshall, Sc.D., and E. T. 

 Hainan, M.A., 2nd Lieut., R.F.A. Communicated by J. Barcroft, F.R.S. 

 (Plates 24 to 26) 546: 



