WILD TRIBES OF PERAK. 37 
| Distance at which 
Sakai of lp eK Age. test-spots were 
| counted. 
Batang Padang ... Be die Wee halle 35 64 feet 
- xe sas ‘a 3 35 ee 
i = wate ae i 14 O23 
* vad aa re i 25 GTr- +; 
Kuala Dipang _... = i, (¢hemale 18 OD 
< oa ee oe Male 28 58, 
Batang Padang ... a ips Heel eto BO a5 
” o ek - mh) AO SOs: 
Kuala Dipang 7 f Jeeeats 22 50% ay 
5 ie wh ...| Female 9 So. a: 
Batang Padang ... -~ _. gate 20 cane 
Kuala Dipang ... ea a st 26 Sie ey 
9 Boe Asis eelag | rf | 20 Ow oo. 
” eto nso 49 5 
” | 25 47 
i es ene ae | 18 AS y 
Batang Padang |. Sy eee See eas Agta 
Kuala Dipang __... - Eval . 8) 40 ,, 
Batang Padang ... me wy. . 4 OS. ys 
f bg a ics P 25 ABY a; 
Kuala Dipang _... , 4 12 Bom 
- ee oa a 7 50 De howe 
The range of sight, it will be seen, is from 23 to gt feet. The 
distribution is fairly good throughout the range. The greatest frequency 
occurs between 60 and 70 feet, almost one-third of the total number. 
The mean for the 34 Sakais is 59'1 feet, for the 29 men 58°39 feet 
and for the five women 62°20 feet. The females occupy a central posi- 
tion in the table, the range of sight being only 12 feet, that is from 55 to 
67 feet, and the mean is rather higher than that of the males. The 
number of observations is, however, too small to make sure that they are 
possessed of better vision than the men. 
In the accompanying diagram are represented the frequency curves 
of the above observations on the 34 Sakais and of 385 English agri- 
cultural and out-door labourers between the ages of 16 and 45 years.* 
The Sakai curve is shown by a solid line and the English curve by a 
dotted line. The latter, being deduced from so many observations, 
is, as might be expected, more regular than that of the Sakais, but the 
two lines have nearly the same characteristics. The greatest frequency 
in the Sakai curve is at 65 feet, while the maximum in the other is at 
55 feet. The sudden drop from 70 to 75 fcet is very marked in both 
lines, while the comparative level between 35 and 45 feet is also 
well defined. 
* Report of the Anthropometric Committee of the British Association for 1881, 
