V 



December 12, 1895. 



Page 



On the Determination of the Indices of Eefraction of various Sub- 

 stances for the Electric Eay. I. Index of Eefraction of Sulphur. 

 By Professor J. C. Bose, B.A. (Cantab.), B.Sc. (Lond.) 160 



Eesearches on the Structure, Organisation, and Classification of the 

 Fossil Eeptilia. Part X. On the complete Skeleton of an Anomodont 

 Eeptile {Aristodesmus Rutimeyeri, Wiedersheim), from the Bunter 

 Sandstone of Eeihen, near Basel, giving new Evidence of the Eela- 

 tion of the Anomodontia to the Monotremata. By H. G. Seeley, 

 F.E.S 167 



Octonions. By Alex. McAulay, Lecturer in Mathematics and Physics, 

 University of Tasmania 169 



On the Formation and Structure of Dental Enamel. By J. Leon 

 Williams, D.D.S., L.D.S 181 



The Healing of Incisions in Vegetable Tissues. By Samuel G. Shattock 182 



List of Presents 183 



■ No. 355.— January 16, 1896. 



The Eotation of an Elastic Spheroid. By S. S. Hough, B.A., Fellow of 

 St. John's College, and Isaac Newton Student in the University of 

 Cambridge , 185 



On a Type of Spherical Harmonics of Unrestricted Degree, Order, and 

 Argument. By E. W. Hobson, Sc.D., F.E.S 189 



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

 Major P. A. MacMahon, E.A., F.E.S 197 



On Some Physical Properties of Argon and Helium. By Lord Eayleigh, 

 Sec. E.S 198 



List of Presents 208 



January 23, 1896. 



An Attempt to determine the Condition in which Helium and the 

 associated Gases exist in Minerals. By W. A. Tilden, D.Sc, F.E.S... 218 



On a Special Action of the Serum of Highly Immunised Animals, and 

 its use for Diagnostic and other Purposes. By Herbert E. Durham, 

 Gull Eesearch Student in Pathology '.. 224 



List of Presents 226 



January 30, 1896. 



On the Ehythmic Contractility of the Spleen. Preliminary Notice. 

 By E. A. Schafer, F.E.S., and B. Moore 229 



The Electrical Measurement of Starlight. Observations made at the 

 Observatory of Daramona House, co. Westmeath, in January, 1896. 

 Second Eeport. By Professor G. M. Minchin, M.A., F.E.S 231 



