I believe that one of these apes could be kept in good condition for any length of time if he were supplied with a normal humidity in an atmosphere laden with miasma and allowed to vary in its temperature. A constant degree of heat is not good for any animal. There is no place in all the earth where nature sustains a uniform degree of heat. We need not go to either extreme, but a change is requisite to bring into play all the organs of the body. The treatment which I would recommend for the care of apes is to build them a house entirely apart from that of other animals. It should be eighteen or twenty feet wide by thirty-five or forty feet long, and at least fifteen feet high. It should have no floor except earth, and that should be of sandy loam or vegetable earth. In one end of this building there should be a pool of water twelve or fifteen feet in diameter; and, imbedded in mold under the water, there should be a steam coil to regulate the temperature as may be desired. In this pool should be grown a dense crop of water plants such as are found in the marshes of the country in which the gorilla lives. This pool should not be cleaned out nor the water changed; but the plants should be allowed to grow and decay in a natural way. Neither the pool nor the house should be kept at a uniform heat, but the temperature should be allowed to vary from 60° to 90°. In addition to the things above mentioned, the place should be provided with the means of giving it a spray of tepid water, which should be turned on once or twice a day and allowed to continue for at least an hour at a time. The water for this purpose should be taken from the pool, but should never be warmer than the usual temperature of tropical rain. The animal should not be required to take a bath in this way, but should be left to his own choice about it. The house should contain a thin partition that could be removed at will, and the end of the building farthest from the pool should be occupied by a strong tree, either dead or alive, to afford the inmates proper exercise. The south side of the house should be of glass, and at least half of the top should be of the same. These parts should be provided with heavy canvas curtains, to be drawn over them so as to adjust or regulate the sunlight. In the summer time the building should be kept quite open, so as to admit the air and the rain. The rule that strangers or visitors should not annoy or tease them should be enforced without respect to person, time, or rank. No visitor should be allowed on any terms to give them any kind of food. The reasons for these precautions are obvious to any one familiar with the keeping of animals; but in the case of the gorilla their observance cannot be waived with impunity.