CONTENTS. XK 



Page 



3. On the Influence of Water on the Union of Carbonic Oxide -with Oxygen 



at High Temperatures. By Haeold B. Dixon, M.A., F.O.S 503 



4. On Metallic Compounds containing Divalent Organic Radicals. Part I. 



By J. Sakubai 504 



5. On the Application of Organic Acids to the Examination of Minerals. By 



Professor H. Oaekington Boiton, Ph.D 505 



FRIBA T, A UG UST 27. 



Address by Joseph Heney Gubeet, Ph.D., F.R.S., F.C.S., F.L.S., President of 

 the Section 507 



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



Spectrum Analysis (Spectra of Metalloids) 534. 



2. Report of the Committee upon the present state of our Knowledge of 



Spectrum Analysis (Ultra-violet Spectra) 534 



3. Exhibition of an Improved Volumetric Apparatus. By J. W. Starling... 534 



4. On the Coal Seams of the Eastern Portion of the South "Wales Basin and 

 their Chemical Composition. By J. W. Thomas 534 



5. On a New Mode for the Purification of Sewage. By P. Spence 534 



MONBAY, AUGUST 30. 



1. On the Refraction-equivalent of Diamond and the Carbon Compounds. By 



J. H. Gladstone, Ph.D., F.R.S 535- 



2. The Position of Agricultural Education and Research in this Country and 



on the Continent of Europe briefly compared and considered. By J. 

 Macbonalb Cameron, F.C.S., &c ^37 



3. On the Specific Rotatory Power of Cane and Invert Sugar. By Aleeed 



H. Allen, F.C.S 541 



4. On the Identification of the Coal-tar Colom-s. By John Spillek, F.C.S. 542 



5. On the Density of Fluid Bismuth. By W. Chandlee Robekts, F.R.S., 

 and Thomas Weightson, C.E 543 



6. On Crystals of Mercury. By Philip Beaham, F.O.S 544 



7. On a New Process for the Metallurgic Treatment of Complex Ores con- 



taining Zinc. By Edwaed A. Paenell, F.O.S 544 



8. On a New Process for the Production, from Aluminous Minerals contain- 



ing Iron, of Sulphate of Alumina free from Iron. By J. W. Ktnaston, 

 F.C.S., F.I.C 545- 



9. On a New Process for separating Silver from Copper contained in Copper 

 Ores and Reguluses. By William Hendeeson 546-' 



TUESBA T, A UG UST 31. 



1. Further Notes on Petroleum Spirit and analogous Liquids. By Alfeed 



H. Allen, F.C.S 547 



2. On the so-called * Normal ' Solutions of Volumetric Analysis. By Alfeed 



H. Allen, F.C.S 549 



3. On the Determination of the Loss of Heat in Steam-Boilers arising from 

 Incrustation. By William Thomson, F.R.S.E 54a' 



