CONTENTS. XV 



TUESDAY, SEPTEMBER 17. 



Page 



1. Some Points in Chemical Education. By Professor Joji Sakttrai, LL.D. 612 



2. *0n the Detection and Estimation of Arsenic in Beer and Articles of 



Food. By W. Thomson, F.R.S.E 613 



3. *0n the Nomenclature of the Ions. By Professor James Walkee, F.R.S. 613 



4. On the Equilibrium Law as applied to Salt Separation and to the Forma- 

 tion of Oceanic Salt Deposits. By Dr. E. Fkankland Aemsteong 



(p. 262) 613 



T). Report on the Bibliography of Spectroscopy (p. 155) 613 



WEDNESDAY, SEPTEMBER 18. 



1. *The Electrolytic Conductivity of Halogen Acid Solutions. By Dr. J. 

 Gibson 613 



2. On the Flame Coloration and Spectrum of Nickel Compounds. By P. J, 



Haetog 613 



3. The Methods of Determining the Hydrolytic Dissociation of Salts. By 



Dr. R. C. Faejier (p. 240) 614 



4. *The Influence of Solvents on the Rotation of Optically Active Com- 

 pounds. By Dr. T. S. Patteeson 614 



Section C— GEOLOGY. 



THURSDAY, SEPTEMBER 12. 



Address by John IJorne, F.RS., F.R.S.E., F.G.S., President of the 

 Section 615 



1. Recent Discoveries in Arran Geology. By William Gtthn 631 



2. On Variation in the Strata in the Eastern Highlands. By George 



Barrow 633 



3. On the Crystalline Schists of the Southern Highlands. Their Physical 



Structure and its Probable Manner of Development. By Peter 



M acnaie 633 



4. The Granite of TuUoch Burn. Ayrshire. By Professor James Geikib, 



F.R.S., and John S. Flett, M.A., D.Sc 634 



5. *0n Crystals dredged from the Clyde near Helensburgh, with Analyses 



by Dr. W. Pollard, By J. S. Fleit, M.A., D.Sc 635 



6. Note on a Phosphatic Layer at the Base of the Inferior Oolite in Skye. 



By HoEACE B. Woodward, F.R.S \ 635 



7. Further Note on the Westleton Beds. By Horace B. Woodward 



F.R.S : 635 



8. Report on the Collection and Preservation of Photographs of Geological 



Interest (p. 339) 635 



FRIDAY, SEPTEMBER 13. 



1. *Time Intervals in the Volcanic History of the Inner Hebrides. By Sir 



Archibald Gbie;ie, D.C.L., F.R.S 636 



2. The Sequence of the Tertiary Igneous Eruptions in Skve. Bv Alpepd 



Barker, M.A., F.G.S „ 



