V 



January 30, 1890. 



Page 



Investigations into the Effects of Training Walls in an Estuary like the 

 Mersey. By L. F. Vernon-Harcourt, M.A., M.Inst. C.E 142 



On outlying Nerve-cells in the Mammalian Spinal Cord. By Ch. S. 

 Sherrington, M.A., M.B., &c 144 



On the Germination of the Seed of the Castor-oil Plant {Ricinus communis). 

 By J. B. Green, M.A., B.Sc, F.L.S., Professor of Botany to the Phar- 

 maceutical Society of Great Britain 146 



List of Presents . 148 



The Assimilation of Carbon by Green Plants from certain Organic Com- 

 pounds. By E. Hamilton Acton, M.A., Fellow of St. John's College, 

 Cambridge...., 150 



No. 288.— February 6, 1890. 



A new Theory of Colour-blindness and Colour-perception. By F. W. 

 Edridge-Green, M.D. 176 



Memoir on the Symmetrical Functions of the Eoots of Systems of Equa- 

 tions. By Major P. A. MacMahon, Royal Artillery 176 



List of Presents 178 



February 13, 1890. 



The Liquation of Gold and Platinum Alloys. By Edward Matthey, 

 F.S.A., F.C.S., Associate Royal School of Mines 180 



On the Unit of Length of a Standard Scale by Sir George Shuckburgh, 

 appertaining to the Royal Society. Bv General J. T. Walker, R.E., 

 F,R.S . 186 



Note on the Spectrum of the Nebula of Orion. By J. Norman Lockyer. 

 F.R.S 189 



Preliminary Note on Photographs of the Spectrum of the Nebula in 

 Orion. By J. Norman Lockyer, F.R.S 189 



List of Presents •. 189 



February 20, 1890. 



A comparative Study of Natural and Artificial Digestions. (Preliminary 

 Account.) By A. Sheridan Lea, Sc.D., Fellow of Gonville and 

 Caius College, Cambridge, University Lecturer in Physiology, Cam- 

 bridge 192 



On a Fermentation causing the Separation of Cystin. (Preliminary 



Communication.) By Sheridan Delepine, M.B., B.Sc 198 



Some Stages in the Development of the Brain of Clupea harengus. By 



Ernest W. L. Holt, Marine Laboratory, St. Andrews 199 



A Cyanogen Reaction of Proteids. By J. Gnezda, M.D 202 



List of Presents 210 



