448 Late Explorations in the Gaboon. [June, 
I have already asserted, and I believe it is proved, that there 
are crosses between the male Zroglodytes gorilla and the female 
Troglodytes niger, but for reasons easily understood, there are 
none in the opposite direction. I have in my possession positive 
proof of this. This settles all the questions about the gorilla, 
chimpanzee, Kooloo Kamba, N’schigo, M’bouvé, the Sokos, Ba- 
boos, etc. 
The French savants seem to have a special predilection for 
creating new species from variations in the form of the skull, such 
as often occur in this group of animals, 
There is but one district which forms the range of the gorilla, 
and this is situated in the western part of equatorial Africa, and 
here it exhibits no varieties, while the chimpanzee is found all 
over tropical Africa, and naturally exhibits considerable variation. 
The chimpanzee of Northern Guinea differs essentially from that 
of the southern portion of the same country, and, according to 
Livingston, the “Soko” differs from both, but is still a chimpan- 
zee. Du Chaillu’s Kooloo Kamba, N’schigo and M’bouve are 
not distinct species, and this traveler, who is certainly a man of 
merit but is too credulous, has been imposed upon by the men- 
dacity of the natives, which beggars description. The names 
N’schigo, M’bouvé, Koola, Baboo, Soko, Quia and Kooloo Kamba 
are only different designations of the chimpanzee by different 
tribes. The mongrel progeny of the male gorilla and female 
chimpanzee discovered by me, is found, but in individual cases, 
and as such deserves no special name. 
I jntend in a few days to start on an excursion to the Crystal 
mountains over the N’tampuny falls. My purpose is primarily to 
shoot elephants. Du Chaillu’s journey to the Oschebas by the 
Munin-Tampnay did not extend far, as I accomplished, last daria 
the same distance in six days’ marches. I found the population 
harmless though somewhat suspicious. The whole district 15 
almost unknown, as I encountered, the second day, members 
entirely new tribes on the Yoko, Manga and later the Akuke. 
The population of this region is continually migrating from the 
north-east to the south-west, and no one will ever succeed in sift- 
ing out the relationship of these commingling tribes. 
As a point of departure for penetrating the interior from the 
west, this seems to be one of the most promising. In all direc- 
tions are districts which are as yet entirely unknown. On the 
