VU1 



Page 



On the Electro-Chemical Equivalent of Silver, and on the Absolute 

 Electromotive Force of Clark Cells. By Lord Rayleigh, D.C.L., 

 F.R.S 448 



On the Natural and Artificial Fertilisation of Herring Ova. By J. 

 Cossar Ewart, M.D., Begius Professor of Natural History in the 

 University of Edinburgh 450 



April 3, 1884. 



Bemarks on the Atomic Weight of Beryllium. By W. N. Hartley, 

 F.B.S.E., &c, Professor of Chemistry, Royal College of Science, 

 Dublin 462 



On the Heating Effects of Electric Currents. By William Henry Preece, 

 F.R.S , 464 



Spectroscopic Studies on Gaseous Explosions. No. L By G. D. Liveing, 

 M.A., F.R.S., and James Dewar, M.A., F.R.S., Professors in the 

 University of Cambridge 471 



On the Action of a Secretion obtained from the Medicinal Leech on the 

 Coagulation of the Blood. By John B. Haycraft, M.B., F.R.S. 

 (Edin.), Professor of Physiology in the Mason and Queen's Colleges, 

 Birmingham 478 



April 24, 1884 



On the Relation between the Electrical Qualities and the Chemical 

 Composition of Glass and Allied Substances. Part I. By Thomas 

 Gray, B.Sc, F.R.S.E., and Andrew Gray, M.A., F.R.S.E., Assistant 

 to the Professor of Natural Philosophy in the University of Glasgow, 

 and J. J. Dobbie, M.A., D.Sc. (Edin.), Assistant to the Professor of 

 Chemistry in the University of Glasgow 488 



Influence of Change of Condition from the Liquid to the Solid State on 

 Vapour-Pressure. By William Ramsay, Ph.D., Professor, and Sydney 

 Young, D.Sc, Lecturer and Demonstrator of Chemistry in University 

 College, Bristol 499 



List of Presents 500 



Observations on the Influence of certain Culture Fluids and Medicinal 

 Reagents in the Growth and Development of the Bacillus tuberculosis. 

 By C. Theodore Williams, M.A., M.D., F.R.C.P., Physician to the 

 Hospital for Consumption, Brompton * 510 



Index 513 



