66 ROYAL SOCIETY OF CANADA 



5. Mr. W. H. Green: The action of ferrie salis on the oxidation of 

 ferrous solutions, and on catalysis by ferrous salts. — Miss C. C. Benson 

 (these transactions, IX., 49) found that ferric salts retarded the oxida- 

 tion of ferrous sulphate by chromic acid, and diminished the catalytic 

 action of ferrous salts on the reaction between potassium iodide and 

 chromic acid. 



So far as Mr Green's measurements go, this fact seems to stand 

 alone. He finds that addition of ferric salts has no effect on the rate 

 of oxidation of ferrous sulphate by chloric acid, or by oxygen ; and that 

 ferric salts do not diminish the catalytic action of the ferrous salts on 

 the reactions between potassium iodide and chloric or bromic acids. 



6. Mr. J. W. McBain: Bibliography of the literature of electroly- 

 tic migration. — Besides the volume, page and year of the periodical in 

 which each paper was published, Mr ]\IcBain gives a full list of the 

 chemicals experimented with, the composition of the solvent, concen- 

 trations of solutions, temperature, amount of electrolysis (voltameter 

 readings), solutions analysed, number of experiments, and final results; 

 also some information as to the form and size of the apparatus, and 

 the use of protecting solutions. An alphabetical authors' index, and an 

 index of chemicals are provided. 



All theoretical and polemical papers have been omitted; the object 

 being to furnish a complete collection of the experimental data on this 

 subject. 



7. Mr. R. B. Stewart: The hydrolysis of sodium tetrathionate in 

 alkaline solutions. — The author has worked out a method of determining 

 the different polythionic acids in mixtures of them, based on the use of 

 volumetric solutions of silver nitrate, hydrogen peroxide, and iodine; 

 and has used the method to study the reactions in alkaline solutions of 

 sodium tetrathionate. 



