List of Papers read. 397 



VII. " On the Action exerted by certain Metals and other Sub- 

 stances on a Photographic Plate." By W. J. Russell,. 

 Ph.D., F.R.S., Lecturer on Chemistry at St. Bartholo- 

 mew's Hospital. 



VIII. " Stress and other Effects produced in Resin and in a Viscid 

 Compound of Resin and Oil by Electrification." By 

 J. W. Swan, F.R.S. 



IX. ;< On Lunar and Solar Periodicities of Earthquakes." By 

 Arthur Schuster, F.R.S. 



X. " Cathode Rays and some analogous Rays." By Silvanus 

 P. Thompson, D.Sc., F.R.S. 



XI. " Micro-physical Structure of pure Gold and Micro-segre- 

 gation in Gold Alloys." By Thomas Andrews, F.R.S. 



XII. "A Maya Calendar Inscription, interpreted by Goodman's 

 Tables." By Alfred P. Macdslat. Communicated by 

 F. Ducane Godman, F.R.S. 



XIII. "Studies in the Morphology of Spore-producing Members. 



Part III. Marattiacese." By F. 0. Bower, Sc.D., F.R.S., 

 Regius Professor of Botany in the University of Glasgow- 



XIV. " The Vector Properties of Alternating Currents and other 



Periodic Quantities." By W. E. Sumpxer, D.Sc. Com- 

 municated by 0. Henrici, F.R.S. 



XV. " On the Theory of the Magneto-Optic Phenomena of Iron,. 



Xickel, and Cobalt." By J. G. Leathem, B.A., Fellow of 

 St. John's College, Cambridge. Communicated by Sir 

 Robert S. Ball, F.R.S. 



XVI. " Some Observations on the Chemistry of the Contents of 

 the Alimentary Tract under various conditions ; and on 

 the Influence of the Bacteria present in them." By 

 A. Lockhart Gillespie, M.D., F.R.C.P.(Ed-), F.R.S.E. 

 Communicated by Professor J. G. McKendrick, F.R.S. 



XVII. " On a Discontinuous Variation occurring in Biscutella 

 Ifevigata." By Miss E. R. Saunders, Lecturer at "Newnham 

 College, Cambridge. Communicated by W. Bateson,. 

 F.R.S. 



XVIII. "Magnetic Properties of Iron at High Temperatures." By 

 J. Hopkinson, D.Sc, F.R.S. 



XIX. " On the Change of Absorption produced by Fluorescence."' 

 By John Burke, B.A.(Dub.), Berkeley Fellow of the 

 Owens College, Manchester. Communicated by Professor- 

 Arthur Schuster, F.R.S. 



