I must here take occasion to mention one incident in the life of Moses, such as perhaps never before occurred in the life of any chimpanzee. While it may not be of scientific value, it is at least amusing. While living in the jungle I received a letter enclosing a contract to be signed by myself and a witness. Having no means of finding a witness to sign the paper, I called Moses from the bushes, placed him at the table, gave him a pen, and had him sign the document as witness. He did not write his name himself, as he had not mastered the art of writing; but he made his cross mark between the names, as many a good man had done before him. I wrote in the blank the name, _His_ “MOSES X NTYIGO” _mark_ (the cross mark being omitted), and had him with his own hand make the cross as it is legally done by persons who cannot write. With this signature the contract was returned in good faith to stand the test of the law courts of civilization; and thus for the first time in the history of the race a chimpanzee signed his name. * * * * * When I prepared to start on a journey across the Esyira country, it was not practicable for me to take Moses along, so I arranged to leave him in charge of a missionary. Shortly after my departure the man was taken with fever, and the chimpanzee was left to the care of a native boy belonging to the mission. The little prisoner was kept confined by a small rope attached to his cage. This was done in order to keep him out of mischief. It was during the dry season, when the dews are heavy and the nights chilly; and the winds at that season are fresh and frequent. Within a week after I had left him he contracted a severe cold. This soon developed into acute pulmonary troubles of a complex type, and he began to decline. After an absence of three weeks and three days I returned and found him in a condition beyond the reach of treatment. He was emaciated to a living skeleton; his eyes were sunken deep into their orbits, and his steps were feeble and tottering; his voice was hoarse and piping; his appetite was gone, and he was utterly indifferent to everything around him. During my journey I had secured a companion for him, and when I disembarked from the canoe I hastened to him with this new addition to our little family. I had not been told that he was ill, and, of course, was not prepared to see him looking so ghastly. When he discovered me approaching, he rose up and began to call me, as he had been wont to do before I left him; but his weak voice was like a death-knell to my ears. My heart sunk within me as I saw him trying to reach out his long, bony arms to welcome my return. Poor, faithful Moses! I could not repress the tears of pity and regret at this sudden change, for to me it seemed the work of a moment. I had last seen him in the vigor of a strong and robust youth, but now I beheld him in the decrepitude of a feeble senility. What a transformation!