CONTENTS. XI 



Page 



17. On the Inconveniences of the present Mode of quoting Scientific Journals. 



By Dr. H. Borns, F.C.S 656 



18. An Account of unusual coloured Bows ohserved in Fogs. By Philip 

 Burton 656 



19. On the Temperature of the Interior of a Block of Melting Ice. By James 



B. Francis 657 



Section B.— CHEMICAL SCIENCE. 

 THURSDAY, AUGUST 28. 



Address by Professor Sir H. E. Roscoe, Ph.D., LL.D., F.R.S., F.C.S., Presi- 

 dent of the Section 659 



1. On Complex Inorganic Acids. By Professor Wolcott Gibbs 669 



2. On an Example of Chemical Equilibrium. By A. Vernon Harcourt, 

 M.A., LL.D., F.R.S 671 



3. On the Incomplete Combustion of Gases. By H. B. Dixon, M.A 671 



4. Spectroscopic Studies of Explosions. By Professors Liveing, F.R.S., and 



Dewar,F.K.S 672 



FRIDAY, AUGUST 29. 



1. On the Constitution of the Elements. By Professor Dewar, F.R.S 672 



2. On the Chemical Aspect of the Storage of Power. By Professor E. 



Frankland, D.C.L., M.D., F.R.S 673 



3. On the Magnetic Rotation of Compounds in relation to their Chemical 

 Composition. By W. H. Perkin, Ph.D., F.R.S 673 



4. On the present state of our Knowledge of Refraction Equivalents. By Dr. 



J. H. Gladstone, F.R.S 674 



5. On the Diffusion of Metals. By Professor W. Chandler Roberts, F.R.S. 675 



6. On some Phenomena of Solution illustrated by the case of Sodium Sul- 

 phate. By Professor William A. Tilden, D.Sc, F.R.S 675 



7. A Theory of Solution. By W. W. J. Nicol, M.A., B.Sc 675 



8. On Evaporation and Dissociation. By Professor William Ramsay, Ph.D., 



and Sydney Young, D.Sc 675 



9. On Molecular Volumes. By Professor William Ramsay, Ph. D 676 



10. On Calcium Sulphide and Sulphocarbonate. By V. H. Veley, M.A., 

 F.C.S 677 



11. On the Action of Sulphuretted Hydrogen upon Silver. By Professor 



F. P. DUNNINGTON 



MONDAY, SEPTEMBER 1. 



1. Report of the Committee upon the present state of our knowledge of 

 Spectrum Analysis 678 



2. Second Report of the Committee on Chemical Nomenclature 678 



3. On Coal-Tar Colouring Matters. By W. H. Perkin, Ph.D., F.R.S 678 



4. On the Manufacture of Soda and Chlorine. By W. Weldon, F.R.S 679 



5. On the Chemistry of the Natural Silicates. Bv Professor T. Sterry 

 Hunt, LL.D., F.R.S 679 



