If an investigator like Dr. Yerkes, and an educator like Dr. Howe, should take it in hand to develop the mind of the elephant to the highest possible extent, their results would be awaited with peculiar interest, and it would be strange if they did not necessitate a revision of the theories now common among those who concede an immortal soul to every member of the human race, even down to the lowest, but deny it to all the animals below man. Curvature in the Brain of an Elephant. There is curvature of the spine; and there is curvature in the brain. It afflicts the human race, and all other vertebrates are subject to it. In the Zoological Park we have had, and still have, a persistent case of it in a female Indian elephant now twenty-three years of age, named "Alice." Her mental ailment several times manifested itself in Luna Park, her former home; but when we purchased the animal her former owners carelessly forgot to mention it. Four days after Alice reached her new temporary home in our Antelope House, and while being marched around the Park for exercise, she heard the strident cry of one of our mountain lions, and immediately turned and bolted. Young as she was at that time, her two strong and able-bodied keepers, Thuman and Bayreuther, were utterly unable to restrain her. She surged straight forward for the front door of the Reptile House, and into that building she went, with the two keepers literally swinging from her ears. As the great beast suddenly loomed up above the crowd of sightseers in the quiet building, the crowd screamed and became almost panic-stricken. Partly by her own volition and partly by encouragement, she circumnavigated the turtle-bank and went out. Once outside she went where she pleased, and the keepers were quite unable to control her. Half an hour later she again headed for the Reptile House and we knew that she would again try to enter. In view of the great array of plate glass cases in that building, many of them containing venomous cobras, rattlesnakes, moccasins and bushmasters, we were thoroughly frightened at the prospect of that crazy beast again coming within reach of them. With our men fighting frantically, and exhausted by their prolonged efforts to control her, Alice again entered the Reptile House. As she attempted to pass into the main hall,--the danger zone,--our men succeeded in chaining her front feet to the two steel posts of the guard rail, set solidly in concrete on each side of the doorway. Alice tried to pull up those posts by their roots, but they held; and there in front of the Crocodile Pool the keepers and I camped for the night. We fed her hay and bread, to keep her partially occupied, and wondered what she would do in the morning when we would attempt to remove her.