1910-11.] The Mono-Molecular .Reaction and Life-Processes. 629 
TABLE I. 
Table showing the Case Mortality at Ages from 1 Year to 10 Years in the 
City of Glasgow Fever Hospital, Belvidere, for Measles, Whooping-cough, 
and Scarlet Fever, with a like Table added for Comparison for Scarlet 
Fever in Manchester, 
Age 
Period. 
Measles. 
Whooping-cough. 
Scarlet Fever. 
Glasgow. 
Manchester. 
Actual 
Tlieor. 
Actual 
Theor. 
Actual 
Theor. 
Actual 
Theor. 
C. M. %. 
C. M. %. 
C. M. %. 
C. M. %. 
G. M. %. 
C. M. %. 
C. M. %. 
C. M. %. 
1-2 
26-1 
25-0 
38-0 
38-0 
24-3 
22 
19-3 
19-3 
2-3 
15-5 
16-0 
25-6 
25T 
16-5 
16-5 
14-7 
14-2 
3-4 
10-4 
10-2 
15-3 
16-1 
12-6 
12*4 
12-2 
10-6* 
4-5 
5-0 
6-5* 
11-7 
11-7 
9-1 
9-3 
8-7 
7-8 
5-6 
4 3 
4-2 
91 
7-2* 
7-0 
7-0 
5-7 
5-8 
6-7 
2-7 
2-7 
6-6 
4-7* 
4T 
5-2* 
4-5 
4 3 
7-8 
1-4 
1-7 
3-6 
3-9 
3-4 
3-2 
8-9 
1 -9 / 15 
3-1 
2-9 
2-2 
2 3 
9-10 
19 \ -4 
•7p 8 
2-2 
2-2 
X 2 = 8-3 
P = -40 
CO 
00 
’ll 
<M 
P>-80 
X 2 = 7'9 
P= *43 
X 2 — 7 ’2 
P = *53 
*, Ages at which, divergence of fact from theory is greatest. 
not be expected. As a matter of fact, from one year to five years the 
concordance is excellent, but thereafter it falls away. 
A certain check on the value of this comparison is seen in Table II., 
TABLE II. 
Table showing the Factor which represents the Rate of Loss of 
Mortality in each of the above Cases. 
Scarlet Fever. 
Measles. 
Whooping-cough. 
Glasgow. 
Manchester. 
Glasgow. 
Glasgow. 
Factor 
'75 
•74 
•64 
•65 
where the factor which expresses the ratio of the decline from year to year 
is given. With regard to scarlet fever, it is to be noted that, though the 
disease is at each age more severe in Glasgow than in Manchester, yet the 
progressions from year to year have the same ratio. This is in strict 
accordance with what I have elsewhere stated, that the average illness only 
is due to the virulence of the germ, and that the relative illness depends 
wholly on the susceptibility of the persons affected. When measles and 
whooping-cough are compared, though the values of the ratios differ 
considerably from that of scarlet fever, they have a marked concordance, 
