340 
ANTHROPOLOGY. 
Orbital Index. 
100 x orbital height 
orbital breadth 
ChamEekonchous. 
Mesokonclious. 
Hypsikonclious. 
Nasal Index. 
100 X nasal breadth 
nasal height 
Leptorliine. 
Mesorliine.. 
Platyrlnne ... 
Hyperplatyrliine. 
80*0 and under 
80-1 to 85-0 
85’1 and over. 
47’0 and under 
47*1 to 51*0 
51-1 ,, 58-0 
58*1 and over. 
Palatal index of Yircliow only provisional, and as yet is 
not adopted.* 
Colour plays a great part in the natural history of man, 
and although it is not a subject I am here going to enter on, 
still a few words thereon may not be unacceptable. It is 
well known that white men, when dwelling for a considerable 
time in torrid zones, lose an amount of whiteness and 
assume a brownish tinge, sensibly verging to black, with 
much more facility; and there is ample mention in the 
observations of travellers that “ on the black attaining his 
seventieth year ” there is a great tendency to a lighter 
colour, for at that age the reticulum sensibly loses a portion 
of its colour, causing the hair and beard to assume at first a 
straw and then a white tinge ; and infants brought to a 
colder climate while young lose a quantity of their black 
colour, and assume a tinge more approaching brown. 
Blumenbacli, in his memoirs, states that he himself knew a 
mulatto woman, born of an African father and white mother, 
who in her youth was sufficiently brown, but who by a resi¬ 
dence in a colder clime and through time, had so degenerated 
in this respect that she retained only a cherry or tawny- 
coloured skin ; and he also asserts that a colony of Portuguese 
(“ Recli. sur les Americ,” i., p. 166,) who were carried to 
Africa in the fifteenth century, have now assimilated the 
native colour to such an extent as to be scarcely distinguishable 
from the aborigines. Thus it will be seen that climate is 
accountable to a great extent for the variation of colour tint 
in the different nations. The varieties will be apparent in 
* These measurements are extracted from the remarks of J. G. 
Garson “ On the Frankfort Craniometric Agreement” in the “Journal 
of the Anthropological Institute of Great Britain,” vol. xiv., p. 66, &c. 
