XV 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



The following Papers were read : — 



I. " Surface Flow in Crystalline Solids under Mechanical Dis- 

 turbance." By G. T. Beilby. Communicated by F. H. 

 Neville, F.R.S. 



IT. " The Effects of Heat and of Solvents on Thin Films of 

 Metal." By G. T. Beilby. Communicated by F. H. 

 Neville, F.R.S. 



III. " The Forces acting on a Charged Electric Condenser 



moving through Space." By Professor TROTJTON, F.R.S., 

 and H. R. Noble. 



IV. " On the Discharge of Electricity from Hot Platinum." By 



Dr. H. A. Wilson. Communicated by C. T. R. Wilson, 

 F.R.S. 



V. " The Bionomics of Convoluta Boscoffensis, with Special Refer- 

 ence to its Green Cells." By Dr. F. W. Gamble and 

 F. TV Keeble. Communicated by Professor S. J 

 Hickson, F.R.S. 



VI. "New Investigations into the Reduction Phenomena of 

 Animals and Plants. — Preliminary Communication." By 

 Professor J. B. Farmer, F.R.S., and J. E. S. Moore. 



VII. The Action of Choline, Neurine, Muscarine, and Beta'me, 

 on Isolated Nerve, and on the Excised Heart." By Dr. 

 A. D. Waller, F.R.S., and Miss S. C. M. Sowton. 



VIII. " The Physiological Action of Betaine extracted from Raw 

 Beet-Sugar." Dr. A. D. Waller, F.R.S., and Dr. R. H. 

 Aders Plimmer. 



IX. " On the Physiological Action of the Poison of the Hvdro- 

 phidse. Part II. — Action on the Circulatory, Respira- 

 tory and Nervous Systems." By Dr. L. Rogers. 

 Communicated by Dr. A. D. Waller, F.R.S. 



X. " The Spectra of Neon, Krypton and Xenon." By E. C. C. 

 Baly. Communicated by Sir William Ramsay. K.C.B., 

 F.R.S. 



XL " The Spectra of Metallic Arcs in an Exhausted Globe." 

 By A. Fowler, A.R.C.Sc, F.R.A.S., and Howard 

 Payn, F.R.A.S. Communicated by Sir X. Lockyer. 

 K.C.B., F.R.S. 



