CONTENTS. V 



Page 

 G. F. FitzGebaid and J. J. Thomsoii, Mr. W. N. Shaw, Dr. J. T. 

 BoTTOMLET, Rev. T. 0. FiTZPATRicK, Professor J. Vieiamtj Jones, Dr. G. 

 Johnstone Stonet, Professor S. P. Thompson, Mr. J. Rennie, Mr. E. H. 

 Griffiths, and Professor A. "VV. Ruckee, and Professor A. G. Webster... 145 



Appendix I. — Comparison of tlie Standard Coils used by Professors J. 

 Viriamu Jones and W. E. Ayrton in their deter- 

 mination of the absolute resistance of Mercury with 

 the Standards of the Association. By R. T. Glaze- 

 brook, F.R.S 147 



„ II. — On the Determination of the Temperature Coefficients 

 of two 10-ohm Standard Resistance Coils (Nos. 3873 

 and 3874) used in the 1897 determination of the 

 ohm. By M. Solomon 151 



„ III. — An Ampere Balance. By Professor W. E. Atrton, 



F.R.S. , and Professor J. Viriamu Jones, F.R.S. ... 157 



Electrolysis and Electro-chemistry. — Interim Report of the Committee, con- 

 sisting of Mr. W. N. Shaw (Chairman), Mr. E. H. Griffiths, Rev. T. C. 

 FiTZPATRiCK, and Mr. W. C. D. Whetham (Secretary), on the present state 

 of our knowledge in Electrolysis and Electro-chemistry 158 



On the Use of Logarithmic Coordinates. By J. H. Vincent, D.Sc, A.R.C.Sc. 159 



Introduction 159 



Construction of an Impedance Chart 161 



Discussion of a Non-translatant 162 



Construction of a Chart for Waves on a Frozen Sea 163 



Another Method of treating the same Non-translatant 167 



The Use of Logarithmic Coordinates to find an Approximate Equation 



connecting a Series of Experimental Results 171 



Tri-dimensional Logarithmic Coordinates 172 



Semi-logarithmic Coordinates 174 



The Graphical Computation of the Hyperbolic Functions ■ 174 



Conclusion . . 1 78 



Seismological Investigations. — Third Report of the Committee, consisting of 

 Mr. G. J. Stmons (Chairman), Dr. 0. Davison and Mr. John Milne 

 (Secretaries), Lord Kelvin, Professor W. G. Adams, Professor T. G. 

 Bonnet, Dr. J. T. Bottomlet, Mr. C. V. Bots, Sir F. J. Beamwell, 

 Mr. M. Walton Brown, Professor G. H. Darwin, Mr. Horace Darwin, 

 Major L. Darwin, Mr. G. F. Deacon, Dr. G. M. Dawson, Professor J. A. 

 EwiNG, Professor C. G. Knott, Professor G. A. Lebour, Professor R. 

 Meldola, Professor J. Perry, Professor J. H. Potnting, Dr. Isaac 

 Roberts, and Professor H. H. Turner 179 



I. Progress made towards the Establishment of Earthquake-observing 



Stations round the World. By John Milne 179 



II.;'Notes on Special Earthquakes. By John Milne 185 



III. Catalogue of Earthquakes Recorded in Tokio, December 17, 1896, 



to December 16, 1897 189 



IV. Earthquakes Recorded at Shide, Isleof Wight, Edinburgh, Bidstone, 



and certain Stations in Europe, with Discussion on the same. 

 By John Milne 191 



V. On Certain Characteristics of Earthquake Motion. By John Milne 218 



VI. Magnetometer Disturbances and Earthquakes. By John Milne 226 



VII. Suboceanic Changes in Relation to Earthquakes. By John Milne 251 



VIII, A Time Indicator. By John Milne 255 



