TABLE OF CONTENTS V 



The Desiriiction of the Fliwrescence of Dilute Solutions by Ultra- 

 violet Light. By Miss F. M. Cale 257 



The Intermediate Compounds in the Reaction between Phthalic 

 Anhydride, Aluminium Chloride and Aromatic Hydro- 

 carbons. By T. C. McMuLLEN 265 



Concentration changes at the Cathode during Electrolysis of Acid 

 Solutions of Copper Sulphate. By J. T. Burt- 

 Gerrans and A, R. Gordon 265 



The Electrolysis of Aqneous Solutions of Sodium Sulphide. By 



W. R. Fetzer 266 



The Reactions of Zircon in the Electric Furnace. By I. M. 



Logan 267 



The Characteristics of Electric Furnace Arcs. By A. E. R, 



Westman 267 



The Melting Interval of certain Undercooled Liquids. By John 



Bright Ferguson 268 



The Effect of Acids on the Rale of Reproduction of Yeast. By 



Miss E. Taylor 269 



The Quantitative Determination of Bios. By G. H. W. Lucas 269 

 The Reaction of Acenaphthene with Phthalic Anhydride and 



Aluminium Chloride. By F. Lorriman 270 



Some Derivatives of Meleic and Fumaric Acids. By H. Odd y 270 



Preparation of Dust-free Liquids. By C. M. Anderson 271 



Supersaturated Solutions of Gases. By K. L. Wismer 271 



The Behaviour of Glass on Electrolysis. By J. W. Renbeck .... 272 



The Diffusion of Hydrogen and of Helium through Silica Glass. 



By Glenn A. Williams 272 



Stability Relations of the Lower Oxides of Iron. By D. M. 



Findlay and L Hoover 273 



The Electrodeposition of Copper and of Nickel on Aluminium. 



By T. E. Everest 274 



The Determination of Phosphorus in Phosphor Bronze, and a 

 Note on the Determination of small amounts of Zinc. 

 By Miss F. M. Burwash 275 



Light Scattering by Dust-free Liquids. By W. H. Martin. . . . 275 



Light Scattering Bibliography. By W. H. Martin 276 



Investigation of Dispersion by an Interference Method. By 



H. F. Dawes ' 283 



