In the order of nature the gorilla occupies the second place below man. His habitat is in the lowlands of West Tropical Africa, and is confined to very narrow limits. The vague line which bounds his realm cannot be defined with absolute precision, but those generally given in books that treat of him are not correct. If he ever occupied any part of the coast north of the equator, he has long since become extinct in that part, but there is nothing to show that he ever did exist there. So far as I have been able to trace the lines that prescribe his native haunts, he appears to be confined to the low, delta country, lying between the Equator and Loango along the coast, and reaching eastward to the interior, an average distance of about one hundred miles. The eastern boundary is very irregular. To be more exact, the extreme limit on the north side would be the Gaboon River to its head-waters, thence southward to the Ogowe River to the mouth of the Nguni River; up that river twenty or thirty miles, thence a zigzag line along the western base of the dividing lands between the Congo basin and the Atlantic watershed, to the head-waters of the Chi Loango River, and with that to the coast. Beyond these lines I have never been able to find any trace of him, and along this boundary only now and then are they found. I have seen two adult and two infant skulls of the gorilla that were brought by Mr. Wm. S. Cherry, from the Kisango Valley, which lies north of the middle Congo in the interior. The skulls are the only evidence I have ever found of this ape existing so far eastward, but they were said to have come from that part of the valley lying directly under the equator. Mr. Cherry did not collect them himself, but secured them from natives, and does not claim to have seen any of these apes alive.
There appear to be three centres of population: the first is in the basin of Izanga Lake; the second in the basin of Lake Fernan Vaz; and the third in the basin of the lake behind Sette Kama. They are rarely ever found in high or hilly districts, but appear to inhabit the hummock lands, which are only elevated a few feet above tide-level. This is singular, from the fact that the ape has a morbid dislike for deep water, and I think it doubtful if he can swim, although he has one peculiar character that belongs to aquatic animals, which is a kind of web between the digits, but its purpose cannot be to aid in swimming. I have been told that the gorilla can swim, and it may be true; but I have never observed anything in his habits to confirm this, while I have noted many facts that controvert it.
I know of no valid reason why he should be confined so strictly within the limits mentioned, unless it be from a condition of climate which seems peculiar to this district. South of it the climate along the coast is much cooler, and the country back of it is hilly and barren; north of the Equator is a land of perpetual rain, while to the eastward, it is mountainous. Within this district the rainy and dry seasons are more fixed and uniform.
The gorilla appears to be an indigenous product which does not bear transplanting; he thrives only in a low, hot and humid region, infested by malaria, miasma and fevers. It is doubtful if he can long survive in a pure atmosphere.
The only single specimen that I have ever heard of north of the equator, was one on the south side of the Komo River, which is the north branch of the Gaboon. The point at which I heard of him was within a few miles of the equator. I also heard of five having been seen a few miles south-west from Njole, which is located on the Equator on the south side of the Ogowe, a little way east of the Nguni, and they were said to be the first ever seen in that part within the memory of man.
NATIVES SKINNING A GORILLA
As to their being found between Gaboon and Cameroon, I can find no trace along the coast of one ever having been seen in that part. Certain writers have mentioned the fact that in 1851 and 1852 they came in great numbers from the interior to the coast. From such a statement it might be inferred that they were seen in herds or armies together, while the truth was that in those years a few more gorillas appeared to be in the jungle than was usual, but they were not north of the Gaboon River. They were in the Ogowe delta about 1° south latitude; but no one ever supposed that they came from the Crystal Mountains or any other mountains. At that time neither traders nor missionaries had ascended the Gaboon River above Parrot Island (which is less than twenty miles from the mouth), except to make a flying trip by canoe, and nothing was known of that part except what was learned from the natives, and that was very little. During my first voyage I went up that river as far as Nenge Nenge, about seventy-five miles from the coast. I spent two days there with a white trader who had been stationed there for a year, and I was assured by him that there were no gorillas known in that part. The natives report that they have been found in the lowlands south of there in the direction of the Ogowe basin; but their reports are conflicting, and none of them, so far as I could learn, claim that he is found north of there, nor in the mountains eastward. I admit the possibility that he has been found and may yet inhabit the strip of land between this river and the Ogowe, but I repeat that there is no proof that he was ever found north of the Gaboon. With due respect to Sir Richard Owen and others who have never been in that country, I insist that they are mistaken.
It is true that one of the tribes living north of the Gaboon has a name for this animal, but it does not follow that he lives in that country. The Orunga tribe have a name for lion, but there is not such a beast within 400 miles of their country, and not one of that tribe ever saw one.
A vast number of specimens have been secured at Gaboon, but they have been brought there from far away, because it is the chief town of the colony, and there are more white men there to buy them than elsewhere. It is quite impossible for a stranger to ascertain what part a specimen is brought from. The native hunter will not tell the truth lest some one else should find the game and thus deprive him of its capture and sale.