REMARKS ON THE SLETEtt AND SABIMBA TRIBES. 351* 
for the sake of clearness, those small one-hundreth parts are only 
shown on such parts as are not filled up by the outline of the head. 
Again should the head reach beyond the square as in the case of fig. 1 
extra squares are created to contain it. By careful measurement 
the relative proportions of the head may thus be reduced to numbers 
with mathematical correctness, and as the higher front square con¬ 
tains the front of the skull and upper part of the face it may be 
denominated the superior anterior square, the higher back square 
will be named the superior posterior square and so on, and by finding 
the number of lOOths. contained in each square the relative propor¬ 
tions in numbers can at once be ascertained ; thus in figures No. I. 
2, 3. and 4. the proportions will be found as follows, 
Anterior Sup. Sq. 
Posterior Sup. Sq. 
Anter. Infer. Sq. 
Fig. 1. 
. 88 
1 . 01 
. 56 
„ 2. 
. 71 
. 92 
. 62 
3. 
. 60 
. 90 
. 50 
,, 4. 
. 44 
. 90 
. 85 
which would place the Orang Sletar intermediate between the Euro¬ 
pean and Negro in expansion of the organs of intellect, and again shews 
them to possess a greater developement of the jaws and “ organs sub- 
serviant to sensation'and animal faculties than either.”* The drawing 
of the Mias, sometimes called Orang Utan in this country and common¬ 
ly Orang Outang in Europe, is given to show the wide difference be¬ 
tween it and the subjects of this paper, who are generally known to 
the Malays as Orang Utan, thus confounding them with the lower 
creation. The above mode of measurement is not given as the only 
one required to ascertain the physical peculiarities of the skulls of 
races, but only as a simple method of rendering palpable to the most 
unpractised eye, the differences of configuration of the outline, and its 
principle can also be applied to the other modes mentioned by Dr. 
* Prichard’s Natural History of man. 
