This, when completed, will be one of the principal attractions of the Park. It is located between the Lake and Eighth Avenue, and work is now going forward upon it to prepare it for the reception of the animals. It is very rocky and wild, and has many natural advantages for the purpose to which it is to be applied. It lies just outside of the main enclosure, and will be connected with it by means of a tunnel under the avenue. INTERNAL ADMINISTRATION. The original cost of the Park was nearly five millions of dollars. The total cost to the present time has been nearly nine millions. About half a million of dollars are annually spent in improvements and in keeping the grounds in order. The control of affairs is vested in a board of eight commissioners, but the general administration is conducted by the Comptroller, Mr. Andrew H. Green. The discipline is very rigid. A force of special policemen, who may be recognized by their gray uniforms, has been placed on duty in the Park, with the same powers and duties as the Metropolitan Police. One of these is always on duty at each gateway, to direct visitors and furnish information, as well as to prevent vehicles from entering the grounds at too rapid a rate. Others of the force are scattered through the grounds at such convenient distances, that one of them is always within call. None of the employés are allowed to ask or to receive pay for their services. Their wages are liberal. When an article is found by any of the employés of the Park, it is his duty to carry it to the property clerk at the Arsenal, where it can be identified and recovered by the rightful owner. Improper conduct of all kinds is forbidden, and promptly checked. Visitors are requested not to walk on the grass, except in those places where the word _Common_ is posted; not to pick flowers, leaves, or shrubs, or in any way deface the foliage; not to throw stones or other missiles; not to scratch or deface the masonry or carving; and not harm or feed the birds. No one is allowed to offer anything for sale within the limits of the enclosure, without a special license from the Commissioners. There are several hotels, or restaurants, in the grounds. These are conducted in first-class style by persons of responsibility and character. Private closets for men, which may be distinguished by the sign, _"For Gentlemen only"_ are located at convenient points throughout the Park, and cottages for ladies and children are as numerous. These latter are in charge of a female attendant, whose business it is to wait upon visitors, and care for them in case of sudden illness, until medical aid can be procured. Carriages for hire will be found at all the principal entrances to the Park. The Commissioners have no control over these vehicles, and the visitor must make his own bargain with the driver; a matter to which he had better attend before entering the vehicle, for these Jehus know how to drive a hard bargain.