CONTENTS OF VOL. XXVIII. FIFTH SERIES. VU 



Page 

 B. Walter on the Relation between Fluorescence and 



Arrangement of Molecules 473 



Dr. C. Y. Burton on a Physical Basis for the Theory of 



Errors 480 



Mr. W. Gr. Gregory on a Method of Driving Tuning-Forks 



Electrically 490 



Proceedings of the Geological Society : — 



Mr. J. C. B. Hendy on a " Dumb Fault " or " "Wash- 

 out" found in the Pleasley and Teversall Collieries, 



Derbyshire , 493 



On the Second Law of Thermodynamics, by Prof. Eilhard 



Wiedemann 493 



On the Maximum Galvanic Polarization of Platinum Elec- 

 trodes in Sulphuric Acid, by Carl Fromme 495 



Index 497 



