movements of its hands and feet. Suzette seemed to have less interest, and to pay less attention to it. On July 22, about 9 a. m., when I appeared in front of Suzette's cage at once she came from her bed directly toward me, and while watching for the movements of the baby, I saw its body relax, and realized it had just died. Suzette almost immediately seemed to realize that something was wrong. She became uneasy, and in moving away from the front of the cage the baby hung limp and lifeless, and ready to slip from her groin. She sat down, gazed intently at its face, gently put her finger-tip in the baby's mouth, and turned back the lips. She also put her fingers up in the nostrils. She carried it about as before, but would frequently sit down and examine it, looking into its face with an anxious and puzzled expression. Several times Suzette allowed the Its diminutive size is apparent by comparison with the hand baby to slip from her groin to the floor of the cage, where of the man. Photographed by R. L. Ditmars. baby nursing on the left breast at 9 a. m., for about one minute. Suzette appeared much brighter and took con siderable food consisting of cocoa and milk, bananas and prunes. The baby was not so active on this day, and appeared to be noticeably thinner. It slept practically all the time. Suzette moved her bedding from the front of the cage to the top of the sleeping boxes. She lay on her back with the baby in her groin or across her abdomen. On July 19, Suzette seemed in better spirits, and her cough was less troublesome. In addition to her regular food she ate some mashed potatoes and two lamb chops with great relish. She kept to her bed and rarely left it, and then only for a moment. In starting from her bed for food, she apparently brought pressure to bear on the infant, for it usually emitted plaintive cries, which caused Suzette to immediately hurry back to her bed, hastily rearrange the straw, and lie down. In a few minutes she would again start to leave the bed, but the baby's cry again caused her to settle down, shift the baby to the other side, and rearrange the straw. On July 20, Suzette remained in her bed all day, and this did not afford such a good opportunity to observe the movements of the baby. It had not been seen to nurse since Sunday morning, July 18, nor had it been seen near the mother's breast. On July 21st and 22nd, Suzette still kept to her bed. The baby seemed less active, thinner, and weaker in the FRONT AND PROFILE OF THE YOUNG CHIMPANZEE. There was an abundance of thick long hair, the ear was huge in comparison with the head, and the lower lip and jaw were covered with fine gray hair. Photographed by R. L. Ditmars. Concerning the psychology of the death episode, Direc- back her baby. It was decidedly pathetic. Keeper tor Hornaday has furnished the following notes: "The death of the infant was reported to me as I sat in my office, by Boma himself. The frightful and long continued yells and screams that issued from his outside cage, and rang out for half a mile in every direction throughout the Park, clearly indicated an unusual provoking cause. Never before had I heard such cries from the throat of a wild animal. After they had continued for about five minutes, I hurried to the Primate house, where I learned the cause. "When by strategy Keepers Spicer and Palmer succeeded in snatching the dead infant from Suzette's possession, her cries of rage and protest were heard by Boma in his outside cage. The fact that Suzette was in real trouble excited him to the utmost, and his rage knew no bounds. Spicer held out his empty hands and said, 'I haven't your baby, Suzette. I can't give it to you!' "Suzette, being in a fair way to become feverish with anxiety and disappointed motherhood, Boma was immediately admitted to her cage, whereupon the two animals at once became quiet; but to them Death remained an unsolved mystery." The loss of the chimpanzee baby was one of the keenest disappointments that we ever have experienced. If it had been possible to assist Suzette in teaching her to nurse the baby properly, it might have thrived. However, it was out of the question for even her most trusted friend and keeper to get near enough to her to attempt assistance. Suzette resented any interference with her baby. If any had been attempted it would have been a dangerous proceeding for the keepers, and certainly would have resulted in the killing of the baby. If persisted in it might have caused the death of Suzette herself. "Presently Suzette calmed down, and approached her keepers with plaintive whines, beseeching that they give |