BOATING ON BRONX LAKE.
The entire southern and western sides of the Park are exclusively devoted to the Hoofed Animals, in addition to which other members of that Order will be found at the Elephant and Small-Mammal Houses. The Carnivorous Animals will be found at the Lion House, Wolf and Fox Dens, Small-Mammal House and Bear Dens. The Birds are in two groups; one in the lower end of Bird Valley, and the Large Bird-House on Baird Court; the other around the Wild-Fowl Pond, south of the Wolf Dens.
The existence of six entrances to the Park renders it impossible to lay out an all-embracing “tour” for the visitor, and develop the Guide Book accordingly. The various collections will be handled in zoological groups, but the various groups cannot follow each other in zoological sequence. The table of contents and a comprehensive index will render each item of the subject matter quickly available.
PHYSICAL ASPECT OF THE GROUNDS.
The extreme length of the Park from north to south is 4,950 feet, or 330 feet less than one mile; and its extreme width is 3,120 feet, or three-fifths of a mile. Roughly estimated, one-third of the land area is covered by heavy forest, one-third by open forest, and the remaining third consists of open meadows and glades. The highest point of land in the Park is the crest of Rocking Stone Hill, the elevation of which is 94.8 feet above sea level.
Topography.—Speaking broadly, the Zoological Park is composed of granite ridges running from north to south. In many places their crests have been denuded of earth by the great glacier which once pushed its edge as far south as New York City. In the valleys lying between these glacier-scraped ridges, great quantities of sandy, micaceous soil have been deposited; but in one spot—the Wild-Fowl Pond—what was once a green, glacial lake fifteen feet deep, presently became a vast rock-walled silo filled with vegetable matter and a trembling bog of peat. Everywhere in the Park glacial boulders of rough granite or smoothly rounded trap-rock, varying in size from a cobble-stone to the thirty-ton Rocking Stone, have been dropped just where the warm southern sun freed them from the ice. The Park contains thousands of them, many of which have been removed from walks and building sites only with great labor.
In three of the four principal valleys of the Park, bogs have been converted into ponds, and in the largest and deepest of all lie Bronx Lake and Lake Agassiz. The bed-rock underlying or cropping out in the Park exhibits pink granite, gray granite, rotten gneiss, and quartz in bewildering variety. Occasionally in trench-digging a ledge is encountered which yields good building-stone for rough work, but usually our rock is so full of mica as to be worthless.
The water-levels in the various portions of the Park are as follows:
| Above Sea Level. | ||
|---|---|---|
| Surface of Bronx Lake | 20.40 | feet |
| Surface of Lake Agassiz | 31.70 | “ |
| Surface of Cope Lake and Duck Ponds | 47.00 | “ |
| Surface of Wild-Fowl Pond | 65.00 | “ |
| Surface of Beaver Pond | 44.00 | “ |