CONTENTS OF VOL. XXXV. FOURTH SERIES. Vll 



Page 

 Mr. J. Gill on the Dynamical Theory of Heat. (With a Plate.) 439 

 Prof. E. Edlund on the least Electromotive Force by which a 



Galvanic Luminous Arc can be produced 441 



Mr. G. W. Wigner on Grove's Battery 448 



Dr. Atkinson's Chemical Notices from Foreign Journals .... 45 i 

 Proceedings of the Royal Society : — 



M. A. L. O. Des Cloiseaux's New Researches on the Dis- 

 persion of the Optic Axes in Harmotome and Wohlerite, 

 proving these Minerals to belong to the Clinorhombic 



(Oblique) System 461 



Mr. C. W. Merrifield on the Law of the Resistance of the 



Air to Rifled Projectiles 463 



Dr. A. Dupre* and Mr. F. J. M. Page on the Specific Heat 



of Mixtures of Alcohol and Water 464 



On the Relation which exists between the Cohesion of a Com- 

 pound Body and the Cohesions of its Elements, by M. J. 



Moutier 466 



On Solar Radiation, by M. Soret 469 



On the Internal Work of Gases, by M. A. Cazin 470 



Index 473 



