SECTION III., 1907. 25% Trans. R. S. C. 
V.—Researches in Physical Chemistry carried out in the University of 
Toronto. 
Communicated by Pror. W. Lasx MILLer. 
1. R. H. Clark: The rate of oxidation of hydrogen iodide by 
bromic acid.—The rate is proportional to the concentrations of the 
iodide and bromate, and to the square of that of the acid. The tempera- 
ture coefficient was determined, and the effect of iodine, bromides, and 
catalytic agents. The paper has been published in the Jour. Phys. 
Chem., vol. 10, pp. 679-700. 
2. R. H. Clark: A new type of catalysis. Addition of a chromate 
much accelerates the rate of liberation of iodine in the foregoing re- 
action, without corresponding reduction of the chromate. The accelera- 
tion is proportional to the concentration of the chromate and to the first 
power of the concentration of the acid. None of the analogous reactions 
that were studied (chloric, bromic, iodic acids on hydrogen bromide and 
iodide) were accelerated by the addition of chromate. In both respects 
this case of catalysis is unique. The paper has been published in the 
Jour. Phys. Chem., vol. 11, pp. 353-362. 
3. W. Lash Miller: The mechanism of induced reactions. A 
classification of the cases of chemical induction is proposed based on 
kinetic measurements; and typical examples, studied in this laboratory, 
are adduced. The paper has been published in the Jour. Phys. Chem., 
vol. 11, pp. 9-20. 
4. Fred. C. Bowman: The supposed induction by arsenious 
acid of the reaction between bromic and hydrobromic acids. By sub- 
stituting hydriodic for hydrobromic acid, and studying the rates of all 
the reactions involved, it is shewn that the supposed case of induction is 
merely a pair of consecutive reactions; and that the support it was sup- 
posed to give to the molecular theory of chemical kinetics is illusory. 
The paper has been published in the Jour. Phys. Chem., vol. 11, pp. 
292-305. 
5. LR. H. Clark: The condensation of oxalic ester with acetone. 
6. H. C. Cook: The condensation of oxalic and acetic esters. 
These reactions were studied in order to throw light on the mechanism 
of the acetacetic ester synthesis. The rates were measured with 
different concentrations of the reagents, using the colouration of the 
condensation product with ferric chloride as a means of analysis. The 
effects of enolizing and ketizing agents on the colour itself were also 
studied. 
