Pajre 



On a New Form of Voltaic Battery. By Paul Jablochkoff. 141 



On the Electro-chemical Equivalent of Silver, and on the Absolute 

 Electromotive Force of Clark Cells. By Lord Rayleigh, D.C.L., 

 F.R.S., and Mrs. H. Sidgwick ., 142 



Preliminary Note on the Constant of Electromagnetic Rotation of Light 

 in Bisulphide of Carbon. By Lord Rayleigh, D.C.L 146 



Certain Points in connexion with the Physiology of Uric Acid. (Supple- 

 mental.) By Alfred Baring Garrod, M.D., F.R.S 148 



A Redetermination of the. Atomic Weight of Cerium. By Henry Robin- 

 son, B.A., Assistant to the Professor of Chemistry in the University 

 of Cambridge 4 150 



The Relation between Electric Energy and Radiation in the Spectrum 

 of Incandescence Lamps. By Captain Abney, R.E., F.R.S., and Lieut- 

 Colonel Festing, R.E 157 



On a Gravity Daniell's Cell of very small Internal Resistance. By J. T. 

 Bottomley - 173 



On the Permanent Temperature of Conductors through which an Electric 

 Current is passing, and on Surface Conductivity, or Emissivity. By 

 J. T. Bottomley. With a Note by Sir William Thomson, F.R.S 177 



The Theory of Continuous Calculating Machines, and of a Mechanism on 

 a New Principle for this and other purposes. By H. S. Hele Shaw .... 189 



On the Experimental Determination of the Index of Refraction of Lique- 

 fied Gases. By Dr. L. Bleekrode 191 



List of Presents 192 



The Variation of Stability with Draught of Water in Ships. By F. Elgar, 

 Professor of Naval Architecture in the University of Glasgow 205 



Notes on the Varieties and Morphology of the Human Lachrymal Bone 

 and its Accessory Ossicles. By A. Macalister, F.R.S., Professor of 

 Anatomy in the University of Cambridge. (Plates 1 3) 229 



No. 233. 



Some Relations of Heat to Voltaic and Thermo-electric Action of Metals 

 in Electrolytes. By G. Gore, LL.D., F.RS 251 



Report to the Solar Physics Committee on a Comparison between appa- 

 rent Inequalities of Short Period in Sun-spot Areas and in Diurnal 

 Temperature-ranges at Toronto and Kew. ByBalfour Stewart, M.A., 

 LL.D., F.R.S., and William Lant Carpenter, B.A., B.Sc 290 



Experiments on the Discharge of Electricity through Gases. Sketch of 

 a Theory. (The Bakerian Lecture.) By Arthur Schuster, Ph.D., 

 F.RS. '(Plate 4) 317 



On the Experimental Determination of the Index of Refraction of Lique- 

 fied Gases. By Dr. L. Bleekrode 339 



