CONTENTS. XI 



Page 



7. Report of the Committee on the Meteorological Observations on Ben 

 Nevis 5/5 



8. Report of the Committee on the Redaction of Magnetic Oloservations 575 



9. Report of the Committee on the Seasonal Variations in the Temperature 



of Lakes, Rivers, and Estuaries 576 



10. On the probable Nature of the Bright Streaks on the Moon. By Dr. 



Ralph Copeland, F.R.A.S., F.R.S.E 576 



TUESBA Y, A UG UST 25. 



1. Report of the Committea on Electrical Standards 576 



2. The Causes of Variation of Clark Standard Cells. By J. Swjnburne ... 576 



3. Joint Discussion with Section G on Units and their Nomenclature, 

 opened by Professor Oliver J. Lodge, F.R.S., followed by W. H. Preece, 

 F.R.S 577 



Some Revolutionary Suggestions on the Nomenclature of Electrical 

 and Mechanical L'nits. By Professor W. Stroud 577 



On a Table to facilitate the Conversion of Electrostatic and Electro- 

 magnetic Measures into one another. By U. Johxstoxe Stoney, 

 M.A., D.Sc, F.R.S 577 



Absolute Units of Measurement. By W. Moon 580 



WEDNESDAY, AUGUST 26. 



L On the Measurement of Lenses. By Professor Silvanus P. Thojipson, 

 F.R.S.. 580 



2. On a new Polariser. By Professor Silvantis P. Trompson, F.R.S 580 



3. Some Experiments on a new Method for the Determination of * v.' By 



A. G. Webster 580 



4. On the Magnetic Field in the neighbourhood of the South London Elec- 

 trical Railwav. By Professor W. E. Atrton, F.R.S., and Professor 

 RxJCKER, F.R.S 581 



5. On the Periodic Time of Tuning-Forks maintained in Vibration Electric- 

 ally. By Professor J. VIRIAMT7 Jones and T. Harrison 581 



6. Magnetic Experiments made in connection with the Determination of the 

 Rate of Propagation of Magnetisation in Iron. By F. T. Trouton 581 



7. On the Connection between the Crystal Form and the Chemical Compo- 

 sition of Bodies. The Symmetry of Crystals accounted for by the Appli- 

 cation of Boscovich's Theory of Atoms to the Atoms of the Chemist. 



By William Barlow, F.G.S 581 



8. Report of the Committee on the Volcanic and Seismological Phenomena 



of Japan 583 



9. On Phenomena which might be Observable if the Hypothesis that Earth- 

 ouakes are connected with Electrical Phenomena be entertained. By 

 Professor John Milne, F.R.S 583 



10. Experimental Study of a Curious Movement of Ovoids and Ellipsoids. 



By Professor Leconte 583 



