- XXII — 



On two new Vanadium Minerals. By H. E. Roscoe. 



The Action of Light on Selenium. By Professor W. G. Adams. 



On the Application of the Principle of Reciprocity to Acousties. 



By Lord Rayleigh. 

 On Phosphorus Pentafluoride. By T. E. Tliorpe. 

 On Supersaturated Saline Solutions. By J. G. Grenfell. 

 On some Elementary Principles in Animai Mechanics. — N." VII! 



The Law of Fatigue. By the Rev. Samuel HaugUon. 

 On Repiilsion resulting from Radiation. Influence of the Residuai 



Gas. — (Preliminary Notice.) By William OrooJces. 

 Note on certain unusual Coagulation-appearances found in Mucus 



and other Albuminoid Fluids. By CJmrles CreigMon. 

 Determination of Verdet's Constant in Absolute Units. By J. E. 



U. Gordon. 

 Contrihutions to Terrestrial Magnetism. — N.° XV. By General 



Sir Edivard Sabine. 

 Researches illustrative of the Physico-Chemical Theory of Fer- 



mentation, and of the conditions favouring Archebiosis in 



previously Boiled Fluids. — N.** I. By H. Charlton Bastian. 

 On the Variations of the Daily Range of Atmospheric Temperature 



as recorded at the Kew Observatory. By Balfour Stewart. 

 On the Leaf-arrangement of the Crowberry (Empetrum nigrum). 



By Hubert Airy. 

 Preliminary Note on the Use of the Piezometer in Deep-Sea Soun- 



ding. By J. Y. Buchanan. 

 On Organo-boron Compounds. By E. FranMand. 

 A Contribution to Terrestrial Magnetism. By Vice-Admiral Sir 



Chas. Shadwell. 

 Experiments on Contact Electricity between Non-Conductors. By 



Joseph Thomson. 

 Physiological Action of the Bark of Erythrophleum guinmse (Casca, 



Cassa, or Sassy Bark). By T. Lauder Brunton. 

 Note on Independeut Pulsation of the Pulmonary Veins and Vena 



Cava. By T. Lauder Brunton. 

 On certain Integrai s. By W. H. L. Russell. 

 Preliminary Report of the Biological Results of a Cruise in H. M. 



S., Valorous' to Davis Strait in 1875. By J. Gwyn Jeffreys. 

 Report on the Physical Investigations carried on by P. Herbert 



Carpenterj B. A., in H. M. S. "Valorous" during her Return 



