ORDER OE QTJADRUMANA. 
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of the English naturalist, Professor Owen. This cranium had 
been confided to Mr. Savage by a missionary at the Gaboon, the 
Bev. Leighton Wilson, of New York. This same missionary at 
a later period procured a second cranium, and part of a skeleton, 
which he presented to the Natural History Society of Boston, Mass. 
Messrs. Savage, Jeffries, Wymann, and Owen, published the first 
scientific dissertations on the new Monkey, and to designate it, 
they adopted the name of Gorilla, employed by Hanno. Their 
writings have established the distinction between the species of 
Troglodytes gorilla and Troglodytes niger , or Gorilla and Chim- 
panzee. 
From this period, the museums of London, Boston, Paris, 
Havre, &c., have been enriched by skeletons and entire specimens 
of the Gorilla. And as we have already mentioned, M. du Chaillu, 
during several excursions into the forests of these regions, has 
observed and killed a number of these animals. 
The two works in which M. du Chaillu has published these 
observations have appeared in English and French, the first in 
1865, the second in 1867.* From them we take the following 
details. 
The Gorilla attains a medium height of about five feet. Its 
muscular power is prodigious, and is equal to the strength of a 
Lion. It is king of the forests it inhabits, and perhaps hunts 
the Lion. The negroes never attack it except with firearms ; to 
kill a Gorilla is an exploit which never fails to make the reputa- 
tion of a black. 
The natural gait of the Gorilla is not that of a biped, but that 
of a quadruped. Nevertheless it retains the vertical position 
more easily, and for a longer time, than any other Monkey. 
When it stands upright its knees are turned outwards, and the 
back is bent. When it runs on its four feet, the length of its 
arms causes its head to be much elevated above the rest of the 
body. The arm and leg of the same side move at the same time, 
so that its pace resembles a kind of oblique gallop. When 
pursued, the young Gorillas do not take shelter in trees, but run 
along the ground ; their hind legs advance between their arms, 
which are a little inclined outwards. 
* Voyages et Aventures dans V Afrique Equatoriale . 8vo. Paris, 1865. Africa 
Sarnage. Par Paul du Chaillu. 8vo. Paris, 1867. 
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