112 
THE DESCENT OF MAN. 
Part I, 
any other animal. Some savage races, such as the 
Australians, are not exposed to more diversified con- 
ditions than are many species which have very wide 
ranges. In another and much more important re- 
spect, man differs widely from any strictly domesti- 
cated animal ; for his breeding has not been controlled, 
either through methodical or unconscious selection. No 
race or body of men has been so completely subjugated 
by other men, that certain individuals have been pre- 
served and thus unconsciously selected, from being in 
some w T ay more useful to their masters. Nor have 
certain male and female individuals been intentionally 
picked out and matched, except in the well-known 
case of the Prussian grenadiers ; and in this case man 
obeyed, as might have been expected, the law of me- 
thodical selection ; for it is asserted that many tall men 
were reared in the villages inhabited by the grenadiers 
with their tall wives. 
If we consider all the races of man, as forming a single 
species, his range is enormous ; but some separate races, 
as the Americans and Polynesians, have very wide 
ranges. It is a well-known law that widely-ranging 
species are much more variable than species with re- 
stricted ranges ; and the variability of man may with 
more truth be compared with that of widely-ranging 
species, than with that of domesticated animals. 
Not only does variability appear to be induced in 
man and the lower animals by the same general causes, 
but in both the same characters are affected in a closely 
analogous manner. This has been proved in such full 
detail by Godron and Quatrefages, that I need here 
only refer to their works . 13 Monstrosities, which gra- 
13 Godron, 4 De l’Espece/ 1859, tom. ii. livre 3. Quatrefages, ‘ Unite 
de l’Espece Humaine/ 1861. Also Lectures on Anthropology, given, 
in the ‘ Kevue des Cours Scient Piques/ 1866-1868. 
