VI 



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On the alleged Correspondence of the Rainfall at Madras with the Sun-spot 

 Period, and on the True Criterion of Periodicity in a series of Variable 

 Quantities. By General Strachey, R.E., O.S.I., F.R.S 249 



List of Presents 262 



On the Calculation of the Trajectories of Shot. By W. D. Niven, M.A., 

 F.R.A.S. 268 



No. 182.— June 7, 1877. 

 Election of Fellows 288 



June 14, 1877. 



On the Minute Structure and Relationships of the Lymphatics of the 

 Mammalian Skin, and on the Ultimate Distribution of Nerves to the 

 Epidermis and Subepidermic Lymphatics. By George Hoggan, M.B., 

 and Frances Elizabeth Hoggan, M.D 289 



Refractive Indices of Glass. By J. Hopkinson, D.Sc, M.A 290 



Electrostatic Capacity of Glass. By J. Hopkinson, D.Sc, M.A 298 



On the Difference of Potential produced by the Contact of different Sub- 

 stances. By R. B. Clifton, F.R.S., Professor of Experimental Philosophy 

 in the University of Oxford 299 



The Physiology of Sugar in relation to the Blood. By F. W. Pavy, M.D., 

 F.R.S 314 



Correction of Statement in the "Note on the Electromotive Properties of 

 Muscle," read December 14, 1876. In a Letter to Professor Huxlev, by 

 Dr. Burdon Sanderson, F.R.S 322 



Photographic Image of Stratified Discharges. A Letter to Prof. Stokes, 

 Sec. R.S., by W. Spottiswoode, M.A., Treas. R.S 323 



On the Length of the Spark between two Spherical Surfaces of the Chloride- 

 of-Silver Battery. By Warren De La Rue, M.A., D.C.L., F.R.S., and 

 Hugo W. Miiller, Ph.D., F.R.S 324 



June 21, 1877. 



On the Normal Paraffins.— Part II. By C. Schorlemmer, F.R.S., Pro- 

 fessor of Organic Chemistry in Owens College, Manchester 325 



The Relationships of the Nerve-cells of the Cortex to the Lymphatic System 

 of the Brain. By Bevan Lewis, F.R.M.S., Assistant Medical Officer at 

 the West Riding Asylum. (Plates 1 & 2.) 326 



On the Thickness of Soap Films. By A. W. Reinold, M.A., Professor of 

 Physics in the Royal Naval College, Greenwich, and A. W. Riicker, 

 M.A., Professor of Physics in the Yorkshire College of Science, Leeds . . 334 



