Arriving on the south side of Lake Izanga, I found a young chimpanzee at the house of a white trader. It was tied to a post in the yard, where it was annoyed by the natives who came to the place to trade. On approaching it for the first time, I spoke to it in its own language, using the word for food. It recognised the sound at once and responded to it. As I came nearer, it advanced as far towards me as the string with which it was tied would allow. Standing erect and holding out its hands, it repeated the sound two or three times. I gave it some dried fish which it ate with relish, and we at once became friends. Its master permitted me to release it on the condition that I should not allow it to escape. I did so, and took the little captive in my arms. It put its arms around my neck as if I had been the only friend it had on earth. It clung to me, and would not consent for me to leave it. I could but pity the poor, neglected creature. There it was, tied in the hot sun, hungry, lonely, and exposed to the tortures of every heartless native that chose to tease it. When it was not in my arms, it followed me around and would not leave me for a moment. Its master cared but little for it, and left it to the charge of his boy, who, like all other natives, had no thought or concern for the comfort of any creature but himself. I tried to purchase it, but the price was too much, and after two days our friendship was broken for ever. But I was glad to learn, soon after this, that another trader secretly released it, and let it escape into the forest. The man who did this told me himself that he did it as an act of mercy. I often recall this little prisoner to mind, and always feel a sense of gladness at knowing that he was set at liberty by a humane friend. Whatever may have been his fate in the forest, it could have been no worse than to be confined, starved, and tormented as he was, while in captivity. Another small specimen, which I saw at Gaboon, was not of much value except from one fact, and that was, it was broken out with an eruptive disease prevalent among the natives. It is called crawcraw or kra-kra. It is said to originate from the water, either by external or internal use of it. This animal was infected in the same way and on the same parts of the body as men are affected by the same disease, and is another instance of their being subject to the same maladies as those of man. The specimen itself also exemplified the difference in intellect among these animals, for this one had in its face the look of mental weakness, and every act confirmed the fact. It was silent, inactive and obtuse. During my residence in the cage I did not see so many chimpanzees as I saw of gorillas, but from those I did see it was an easy matter to determine that they were much less shy and timid than the gorilla.