CONTENTS. 



SERIES B. VOL, LXXVII. 



No. B 514.— November 30, 1905. 



PAOJ 



The Effect of Plant Growth and of Manures upon the Retention of Bases by the 

 Soil. By A. D. Hall, M.A., and N. H. J. Miller, Ph.D. Communicated by 

 H. E. Armstrong, LL.D., Ph.D., F.R.S 1 



On the Origin and Life History of the Interstitial Cells of the Ovary in the 

 Babbit. By Janet E. Lane-Claypon. Communicated by Professor E. H. Star- 

 ling, F.R.S. (Plate 1) 32 



Fertility in Scottish Sheep. By Francis H. A. Marshall, M.A. (Cantab.), D.Sc. 

 (Edin.), Carnegie Fellow, University of Edinburgh. Communicated by Pro- 

 fessor E. A. Schafer, F.R.S 58 



On the Nature of the Galvanotropic Irritability of Roots. By Alfred J. Ewart, 

 D.Sc, Ph.D., F.L.S., and Jessie S. Bayliss, B.Sc. Communicated by Francis 

 Darwin, For. Sec. R.S 63 



On the Isolation of the Infecting Organism (" Zoochlorella ,: ) of Convoluta 

 roscoffensis. By Frederick Keeble, M.A., University College, Reading, and 

 F. W. Gamble, D.Sc, University of Manchester. Communicated by Sydney 

 J . Hickson, F.R.S 66 



Further Observations on the Germination of the Seeds of the Castor Oil Plant 

 {Ricinus communis). By J. Reynolds Green, Sc.D., F.R.S., Professor of Botany 

 to the Pharmaceutical Society of Great Britain, and Henry Jackson, M.A., 

 Fellow and Tutor of Downing College, Cambridge 69 



No. B 515.— January 6, 1906. 



On certain Physical and Chemical Properties of Solutions of Chloroform and other 

 Anaesthetics. — A Contribution to the Chemistry of Anaesthesia. (Second 

 Communication.) By Benjamin Moore, M.A., D.Sc, Johnston Professor of 

 Bio-chemistry, University of Liverpool, and Herbert E. Roaf, M.D., Toronto, 

 Johnston Colonial Fellow, University of Liverpool. Communicated by 

 Professor C. S. Sherrington, F.R.S 86 



On the Effects of Alkalies and Acids, and of Alkaline and Acid Salts, upon Growth 

 and Cell Division in the Fertilized Eggs of Echinus esculentus. — A Study in 

 Relationship to the Causation of Malignant Disease. By Benjamin 

 Moore, M.A., D.Sc, Johnston Professor of Bio-Chemistry, L T niversity of 

 Liverpool ; Herbert E. Roaf, M.D., Toronto, Johnston Colonial Fellow, 

 University of Liverpool ; and Edward Whitley, M.A. Oxon. Communicated 

 by Professor W. A. Herdman, F.R.S 102 



