16 
(c) Caries aflfests a larger percentage of lowe r teeth than upper teeth 
in the proportion of 70 per cent lower to 30 per cent upper. 
(d) The teeth of the right side are affected w ith about the same fre- 
quency as those of the left side. Upp er right 49 per cent to 
upper left 51 per cent; lower right 50 per cent to lower left 50 per 
cent. 
(e) The first lower molars are the most frequent offenders. Of 45 
persons with only one decayed tooth, in 71 per cent that tooth 
is the first lower molar. 
The frequency with which the various teeth of male and female 
adults were affected with dental caries is shown here on a per-thousand 
basis. 
Ms 
Ms 
Ml 
PmS 
Pml 
C 
Ij 
h 
Ii 
Is 
C 
Pml 
PmS 
Ml 
Ms 
Ms 
Upper 
30 
23 
60 
10 
13 
— 
— 
13 
13 
— 
— 
10 
10 
67 
33 
23 
Lower 
53 
67 
220 
7 
3 
3 
10 
3 
3 
3 
3 
207 
77 
63 
1 
(The number of teeth afTected was 339; for convenience in calculating, the number was 
assumed to be 393.) 
ANTHROPOMETRIC CHARACTERS 
The following measurements were taken: 
1. Stature 
2. Arm stretch (maximum) 
3. Sitting height 
4. Length of head (glabella ad maximum) 
5. Width of head (biparietal maximum) 
6. Width of forehead (frontal minimum) 
7. Length of face 
(a) Menton-nasion 
(b) Menton-crinion 
8. Width of face (bizygomatic maximum) 
9. Height of nose 
10. Width of nose 
11. Length of mouth 
12. Length of ear 
13. Width of ear 
14. Length of upper lip 
15. Length of hand 
16. Width of hand 
And from these measurements the following ind ices have been calculated; 
17. Arm stretch (Arm stretch to stature) 
18. Sitting height (Sitting height to stature) 
19. Cephalic (Width of head to length of head) 
20. Cephalo-facial (Width of face to width of head) 
21. Facial [Length of face (Menton-nasion) to width of face] 
22. Nasal (Width of nose to height of nose) 
23. Ear (Width of ear to length of ear) 
24. Hand (Width of hand to length of han d) 
