After a delay of eight days at Cape Lopez, we secured passage on a small French gunboat called the _Komo_, by which we came to Gaboon. There I found another kulu-kamba. She was in the hands of a generous friend, Mr. Adolph Strohm, who presented her to me. I gave her to Aaron as a wife and called her Elisheba,--after the name of the wife of the great high-priest. Elisheba had been captured on the head-waters of the Nguni River, in about the same latitude that Aaron was found in, but more than a hundred miles to the east of that point and a few minutes north of it. I did not learn the history of her capture. It would be difficult to find any two human beings more unlike in taste and temperament than these two apes were. Aaron was one of the most amiable of creatures; he was affectionate and faithful to those who treated him kindly; he was merry and playful by nature, and often evinced a marked sense of humor; he was fond of human society and strongly averse to solitude or confinement. Elisheba was a perfect shrew. She often reminded me of certain women that I have seen who had soured on the world. She was treacherous, ungrateful, and cruel in every thought and act; she was utterly devoid of affection; she was selfish, sullen, and morose at all times; she was often vicious and always obstinate; she was indifferent to caresses, and quite as well content when alone as in the best of company. It is true that she was in poor health, and had been badly treated before she fell into my hands; but she was by nature endowed with a bad temper and depraved instincts. It is not at all rare to see a vast difference of manners, intelligence, and temperament among specimens that belong to one species. In these respects they vary as much in proportion to their mental scope as human beings do; but I have never seen, in any two apes of the same species, the two extremes so widely removed from one another. While waiting at Gaboon for a steamer I had my own cage erected for the apes to live in, as it was large and gave them ample room for play and exercise. In one corner of it was suspended a small, cosy house for them to sleep in. It was furnished with a good supply of clean straw and some pieces of canvas for bedclothes. In the center of the cage was a swing, or trapeze, for them to use at their pleasure. Aaron found this a means of amusement, and often indulged in a series of gymnastics that might evoke the envy of a king of athletic sports.