CONTENTS. XIU 



TUESDAY, AUGUST 25. 



Page 



1. Report on Isomeric Naphthalene Derivatives 610 



2. Report on Wave-length Tables of the Spectra of the Elements 610 



3. Report on the Absorption Spectra of Pure Compounds 610 



. 4. On the SpeciBc Heat of Basalt. By W. C. Roberts- Austen, C.B., F.R.S., 



and A. W. Ruckee, F.R.S 610 



5. An Apparatus for Testing Safety Lamps. By Professor F. Clowes, F.C.S. 611 



6. On Didymium from different Sources. By Professor C. M. Thompson, 

 F.C.S. ■ 611 



7. On the Nature of Solution. By Professor W. Ramsay, F.R.S 612 



8. The Interpretation of certain Chemical Reactions. By C. H. Bothamley, 



F.C.S 612 



9. Action of Nitrosvl Chloride on Unsaturated Carbon Compounds. By J. 



J. SirDBOEOUQH,"'B.Sc., A.I.C., F.C.S 612 



10. On the Formation of Peaty Colouring Matters in Sewage by the Action 



of Micro-organisms. By W. E. Adenet, F.I.C, Assoc.R.C.Sc.I 612 



11. On a new Method of Disposal of Sewage, with some references to Schemes 



now in use. By C. G. Moor, B.A 612 



12. The Reaction of Glycerides with Alcoholic Potash. By A. H. Allen, 



F.C.S 613 



13. Note on the Electrolysis of Alloys. By Heney C. Jenkins, Assoc. M. 

 Inst.C.E., F.C.S 613 



Section C— GEOLOGY. 



THURSDA Y, A UG UST 20. 



Address by Professor T. Rupert Jones, F.R.S., F.G.S., President of the 



Section ^ 61-4 



1. Discovery of the Oknellus-zone in the North-west Highlands. By Sir 



Aeohibald Geikie, F.R.S., Director-General of the Geological Survey... 633 



2. On some recent Work of the Geological Survey in the Archaean Gneiss of 

 the North-west Highlands. By Sir Archibald GeiKie, F.R.S. , Director- 

 General of the Survey 634 



3. Report of the Committee on the Registration of Type Specimens 634 



4. Remarks on the Lower Tertiary Fish Fauna of Sardinia. By A. Smith 



WooDWAED, F.G.S ' 634 



5. Evidence of the Occurrence of Pterosaurian and Plesiosaurian Reptiles in 



the Cretaceous Strata of Brazil. By A. Smith Woodwaed, F.G.S 635 



6. The Cause of Monoclinal Flexure. By A. J. Jttkes-Beowne, F.G.S. ... 635 



7. Note on an Undeacribed Area of Lower Greensand, or Vectian, in Dorset- 



shire. By A. J. Jukbs-Beownb, F.G.S 635 



