No. B 580.— August 20, 1912. 



PAGE 



'The Electrical Conductivity of Bacteria, and the Bate of Sterilisation of Bacteria 

 by Electric Currents. By W. M. Thornton, D.Sc, D.Eng., Professor of 

 Electrical Engineering in Armstrong College, Newcastle-on-Tyne. Com- 

 municated by Prof. C. S. Sherrington, F.E.S 331 



An Investigation into the Life-history of Cladothrix dichotoma (Cohn). By David 

 Ellis, PhD., D.Sc., F.R.S.E. Communicated by H. W. T. Wager, F.E.S. 

 (Plate 8) 344 



,-Studies on Enzyme Action. XVI. — The Enzymes of Emulsin. (I) Prunase, the 

 Correlate of Prunasin. By H. E. Armstrong, F.R.S., E. F. Armstrong and 

 E. Horton 359 



. Studies on Enzyme Action. XVII. — Enzymes of the Emulsin Type. (II) The 

 Distribution of ^-Enzymes in Plants. By H. E. Armstrong, F.R.S., 

 E. F. Armstrong and E. Horton 363 



, Studies on Enzyme Action. XVIII.— Enzymes of the Emulsin Type. (Ill) Linase 

 and other Enzymes in Linaceas. By H. E. Armstrong, F.E.S., and J. Vargas 

 Eyre, M.A., Ph.D 370 



■ Observations on Fowls and Ducks in Uganda with Relation to Trypanosoma 

 gallinarum and T. gambiense. By Dr. H. L. Duke. (With a Note by Miss 

 Muriel Robertson.) Communicated by Sir J. R. Bradford, K.C.M.G., Sec. R.S. 



(Plate 9) 378 



'The Origin and Destiny of Cholesterol in the Animal Organism. Part IX. — On 

 the Cholesterol Content of the Tissues, other than Liver, of Rabbits under 

 Various Diets and duiing Inanition. By G. W. Ellis and J. A. Gardner. 

 Communicated by Dr. A. D. Waller, F.R.S 385 



. A Note on the Protozoa from Sick Soils, with some Account of the Life-Cycle of a 

 Flagellate Monad. By C. H. Martin, M.A., late Demonstrator in Zoology at 

 Glasgow University and at the Imperial College of Science. Communicated by 

 Prof. E. A. Minchin, F.R.S. (Plate 10) 393 



; Further Observations on the Variability of Streptococci in Relation to Certain 

 Fermentation Tests, together with some Considerations Bearing on its Possible 

 Meaning. By E. W. Ainley Walker, M.A., D.M., Fellow and Tutor of 

 University College, and Lecturer 4n Pathology in the University of Oxford. 

 Communicated by Prof. Gotch, F,R.S 400 



' The Specific Conductivity of Solutions of Oxyhemoglobin. By Prof. G. N. Stewart. 



Communicated by Sir J. R. Bradford, K.C.M.G., Sec. R.S 413 



No. B 581.— August 24, 1912. 

 ' The Chemical Action on Glucose .of a'.Variety of Bacillus coli communis (Escherich), 

 obtained by Cultivation in. Presence of a Chloroacetate. (Preliminary Notice.) 

 By A. Harden, F.R.S., and W. J. Penfold 415 



'.The Action of Enzymes on Hexosephosphate. By Victor J. Harding. Com- 

 municated by A, Harden,. E.R.S 418 



