198 
DK. A. VERNON HARCOURT ON THE VARIATION WITH 
In liis subsequent experiments Veley uses the relation hll\ = (T/Tj)’", from which 
he obtains values of k agreeing with those found within the limits of experimental 
error. 
V. In the observations on “ The Rate of Action of Drugs upon Muscle as a 
Function of Temperature,” Veley and Waller, ‘Roy. Soc. Proc.,’ B, vol. 82, 1910, 
values of m were found to be 26'7, 20’8, 14’3 in experiments with different drugs. 
VI. “ The Affinity Constants of Bases as determined by the aid of Methyl 
Orange,” Veley, ‘ Journal of the Chemical Society,’ XCIII., 2, pp. 2122-2144. 
In this paper Veley uses the formula kjh^ — (T/Ti)”‘ for his own experiments and 
applies it to experiments of the same kind by other chemists. Values of m in 
different experiments were found to be 
2, 9, 11, 13, 14, 15, 22-5. 
VII. ‘ Decomposition of Phosphine,’ Kooy. These expeiiments are quoted by 
VAN’t Hoff, p. 135 (5), who calculated values of h from the formulse 
[a) m = {k-^dk)/{T-^dT) = AT-\ 
{h) m - (7:-C77:)/(T-idT) = AT--HB, 
(c) m = {k-^ d,k)l(^-^ dT) = C. 
For {a) and (c) he assumes as correct the first and last observation, and for (5) he 
assumes all the observations except the second. The value of m in (c) is 12’3. The 
values of k are calculated from the formula 
log k = 12’3 log (T/Tj) +4’681. 
VIII. “ Action of Bromine on Acetaldehyde in Aqueous Solution,” Bugarszky, 
‘ Zeit. Physikal. Chem.,’ 1904, 48, 63-86. 
The values of k are calculated from the relation kjk-^ = (T/Tj)™, m being 267. 
t. 
k. 
Found. 
Calculated. 
Author. 
0 
•117 
■117 
■119 
10 
■308 
■307 
■303 
20 
■790 
■777 
■772 
25 
R205 
R222 
V234 
The author’s formula is 
log^ = -04068^--9257. 
