Page 



" Nitragin " and the Nodules ot Leguminous Plants. By Maria Daw- 

 son, B.Sc. (London and Wales). Communicated by Professor H. 

 Marshall Ward, F.RS 167 



Preliminary Note on the Spectrum of the Corona. By Sir Norman 

 Lockyer, K.C.B., F.RS. (Plate 4) 168 



Meeting of December 15, 1898, and List of Papers read 171 



The Action of Magnetised Electrodes upon Electrical Discharge Phe- 

 nomena in Earefied Gases. Preliminary Note. By C. E. S. 

 Phillips. Communicated by Sir William Crookes, F.RS 172 



Observations on the Anatomy, Physiology, and Degenerations of the 

 Nervous System of the Bird. By E. Boyce and W. B. Warrington. 

 Communicated by Professor Sherrington, F.E.S. 176 



On the Eeciprocal In nervation of Antagonistic Muscles. Fifth Note. 

 By C. S. Sherrington, M.A., M.D., F.E.S 179 



Note on the Densities of " Atmospheric Nitrogen," Pure Nitrogen, and 

 Argon. By William Eamsay, F.E.S 181 



The Preparation and some of the Properties of Pure Argon. By 

 William Eamsay, F.E.S., and Morris W. Travers 183 



On some Expressions for the Eadial and Axial Components of the 

 Magnetic Force in the Interior of Solenoids of Circular Cross-section. 

 By C. Coleridge Farr, B.Sc. Communicated by Professor H. Lamb, 

 F.RS. . 192 



No. 407. 

 Tables for the Solution of the Equation 



By W. Steadman Aldis, M.A. Communicated by Professor J. J. 

 Thomson, F.E.S ................................................ , ............................................ 203 



Memoir on the Theory of the Partitions of Numbers. Part II. By 

 Major P. A. MacMahon, E.A., D.Sc., F.E.S ......................................... 224 



On the Boiling Point of Liquid Hydrogen under Eeduced Pressure. 

 By James Dewar, M.A., LL.D., F'.RS .................................................... 227 



Application of Liquid Hydrogen to the Production of High Vacua, 

 together with their Spectroscopic Examination. By James Dewar, 

 M.A., LL.D., F.RS .................................................................................... 231 



Meeting of January 19, 1899, and List of Papers read ...... . ..................... 238 



Observations upon the 'Normal and Pathological Histology and Bac- 

 teriology of the Oyster. By W. A. Herdman, D.Sc., F.E.S., Pro- 

 fessor of Zoology in University College, Liverpool, and Eubert 

 Boyce, M.B., Professor of Pathology in University College, Liver- 

 pool ................................................................... ........................................ 239 



On the Formation of Multiple Images in the Normal Eye. By Shel- 

 ford Bidwell, M.A., LL.B., F.E.S. (Plate 5) . ....................................... 241 



