— XXVI — 

 cromhy. Observations on the Height, Length and Velocity of Ocean 

 Wares. — T. Sterri/ Hunt. The Integrai Weight of Water. — IT. 

 W. Watson. Note on the Electromotive Force in Moving Con- 

 diictors. — /. Youìig. Sketch of a Stratigraphical Table, chiefly 

 for Western Europe. — W. W. Haldanc Gee. Experiments on 

 Electrolysis. — P. I. Chance of Densily of the Electrolyte at the 

 Electrodes. — Silvarius P. Tlionipsoìi On a Modified Water-Drop- 

 ping Ihiluence-macliine. — H. Tomlinson. Tlie Effect of M.igne- 

 tization on the Therrnoi^ectrìc.il and otlier Physical Propeities 

 of Bisinuth. — r. H. Blakedey. On a Method of Determining the 

 Difference between the Phise of two Hannonic Curients of Elec- 

 tricity having the same Ppriod. — J. F. Heyet^. On Valency, Va- 

 lidity, and Residuai Affunty. — F. J. Snii'h. The Application of 

 Hydraulic Power to Meicurial Pomps. — A. Righi, On some Elec- 

 trical Phciiomena provokeil by Radiation. 



Idem. - Voi. 25, n. 156. - May 1888. 



T. Pelham Vale. On the Numerical Relation between the Index of 

 Refraction and the Wave-lenglh wilhin a Refractive Medium and 

 on the Limit of Refraclion. — T. Mellard Rp.ade. Tiilal Action 

 as an Agent of Geological Change. — A. Griìnwald. Mathemati- 

 ca! Spectral Aiialysis of Magnesium and Carbon. — L. Bell. The 

 Absolute Wave-len<;th of Liglit. II. — H. Tomlinson. The Tem- 

 perature at wliich Nickel begins to lose suddenly its Mat^netic 

 Properties. — Oliver Ueaviside. On Electromagnetic Waves, espe- 

 cially in relation lo the Voiticily of the Impressed Foiccs; and 

 the Forced Vibrations of Electromagnetic Systems. — /. Parker. 

 The Thermodynamics of Cryohydrales. — C. V. Boys. Experi- 

 ments with Soap-bub-bles — • H. M. Bosanquet. On the use of 

 the term « Resistaiice » in the Uescription of Physical Pheno- 

 mena. — W. Michelson. Tlieoretical Essay on the Distribution of 

 Energy in the Speetra of Solids. 



Idem. ' Voi. 25, n. ^ 57- 158. -Jiine-July 4 888. 



W. E. Sunqmer. The Variation of the Coefficients of Induction. — 

 W. E. Ayrton and /. Perry. The Efficiency of Incandescent Lamps 

 with Direct and Alternaling Currents. — The Magnetic Circuit 

 of Dinamo-Machines. — On the Governing of Electromotors. — E. 

 C. Biniington. On the Measurement of the Power supplied to the 

 Primary Goil of a Transformer, — C. H. Draper. On the Pola- 



