CONTENTS. 



VOL. XXIY. 



No. 164 



The Bakerian Lecture. — On the Forms of Equipotential Curves and Surfaces 

 and on Lines of Flow. By W. G. Adams, M.A., F.R.S., Professor of 

 Natural Philosophy and Astronomy in King's College, London. (Plates 



1&2.) 



November 18, 1875. 



Report to the Hydrographer of the Admiralty on the Cruise of H.M.S. 

 i Challenger ' from June to August 1875. By Prof. Wyville Thomson, 

 F.R.S., Director of the Civilian Scientific Staff on Board. (Plates 3-7.) 33 



On the Physiological Action of Vanadium. By John Priestley, Piatt Phy- 

 siological Scholar, Owens College, Manchester 40 



On some Elementary Principles in Animal Mechanics. — No. VII. The Law 

 of Fatigue. By the Rev. Samuel Haughton, M.D. (Dubl.), D.C.L. 

 (Oxon.), F.R.S., Fellow of Trinity College, Dublin 42 



November 25, 1875. 



On the Replacement of Electro-positive by Electro-negative Metals in a 

 Voltaic Cell. By J. H. Gladstone, Ph.D., F.R.S., Fullerian Professor of 

 Chemistry in the Royal Institution, and Alfred Tribe, Lecturer on Che- 

 mistry in Dulwich College 47 



On the Production of Glycosuria by the Effect of Oxygenated Blood on the 

 Liver. (Supplement to Communication presented June 17th, 1875.) 

 By F. W. Pavy,M.D., F.R.S '. , 51 



On the Structure and Relations of the Alcyonarian Heliopora ccerulea, with 

 some Account of the Anatomy of a Species of Sarcophyton ; Notes on 

 the Structure of Species of the Genera MiUepora, Pocillopora, and Sty- 

 luster ; and Remarks on the Affinities of certain Palaeozoic Corals. By 

 H. N. Moseley, M.A. (Oxon.), Naturalist to the 'Challenger' Ex- 

 pedition 59 



