[ ™ ] 
XVII. 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., and Mrs. H. 
Sidgwick.. page 411 
XVIII. 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. Com¬ 
municated by Professor James Thomson, LL.D., F.R.S . 461 
XIX. A record of Experiments on the Effects of Lesion of Different Regions of the 
Cerebral Hemispheres. By David Feerier, M.D., LL.D., F.R.S ., Professor 
of Forensic Medicine in King’s College, and Gerald F. Yeo, M.D., F.R.C.S., 
Professor of Physiology in King’s College, London . 479 
XX. On the Comparative Morphology of the Leaf in the Vascidcir Cryptogams and 
Gymnosperms. By F. O. Bower, M.A., F.L.S. Communicated by W. T. 
Thiselton Dyer, M.A., C.M.G., F.R.S. . 565 
XXI. Conditions of Chemical Change in Gases: Hydrogen, Carbonic Oxide, and 
Oxygen. By Harold B. Dixon, M.A., the Duke of Bedford’s Lecturer on 
Chemistry at Balliol College, and Millard Lecturer at Trinity College, Oxford. 
Communicated by Professor A. W. Williamson, LL.D., Foreign Secretary 
R.S. .... . . 617 
Index to Volume . 685 
