D. Macdonald 
25 
Measles. 
TABLE VII. Hair Colour. Showing the Percentages and Numbers of 
the various Hair Colours of Children suffering from Measles, as com- 
pared with the General Population. 
Black 
Dark 
Medium 
Fair 
Ked 
Totals 
.Ruchill only : 
Actual numbers 
0 
85 
367 
184 
25 
661 
Theoretical numbers ... 
7 
176 
299 
144 
35 
661 
Actual percentage 
o-o 
12-9 
55-5 
27-8 
3-8 
100 
Theoretical percentage... 
1-1 
26-7 
45-3 
21 -7 
5-3 
100 
In measles medium hair and, to a less extent, fair hair, are considerably in 
excess, red hair and, even more so, dark and jet black hair considerably deficient, 
compared to their proportional representation in the general population. 
This would indicate that the medium-haired child, and, to a less extent, the 
fair-haired child, is more susceptible to measles than the red-haired child and, even 
more so, than the dark and jet black-haired child. 
TABLE VIII. Eye Colour. Showing the Percentages and Numbers of 
the various Eye Colours of Children suffering from Measles, as com- 
pared with the General Population. 
Dark 
Medium 
Light 
Blue 
Totals 
Ruchill only : 
Actual numbers 
96 
398 
146 
21 
661 
Theoretical numbers 
161 
215 
206 
79 
661 
Actual percentage ... 
14-5 
60-2 
22-1 
3-2 
100 
Theoretical percentage 
24-4 
32-4 
31-2 
12-0 
100 
In measles the medium eye is considerably in excess, the blue eye and, to 
a less extent, the dark and light eye, considerably deficient, compared to their 
proportional representation in the general population. This would indicate that 
the medium-eyed child is much more susceptible to measles than the dark and 
light-eyed child and, even more so, than the blue-eyed child. 
Whooping Cough. 
TABLE IX. Hair Colour. Showing the Percentages and Numbers of 
the various Hair Colours of Children suffering from Whooping Cough, 
as compared with the General Population. 
Black 
Dark 
Medium 
Fair 
Bed 
Totals 
Belvidere and Ruchill : 
Actual numbers 
2 
35 
190 
73 
10 
310 
Theoretical numbers 
4 
84 
140 
66 
16 
310 
Actual percentage ... 
0-6 
11-3 
61-3 
23-6 
32 
100 
Theoretical percentage 
1-2 
27-2 
45-2 
21-4 
5-0 
100 
Biometrika viii 4 
