We are indebted to Samuel J. Gustin, Esq., of Newark, N. J., for reports, documents, and proceedings relative to the New York Parks. The question is yet, we believe, undecided. Some are in favor of "Jones' Park" - a tract of ground containing 153 acres, part of it heavily wooded, lying between the Third avenue and the East River, not a great distance from the Hurlgate ferry. "Central Park," contains upwards of 700 acres, almost in the center of the island, between Sixteenth and 106th streets and the Fifth and Eighth avenues, being about half a mile wide and two and one-fourth miles long. This ground embraces the site of the new Croton reservoir, which will be in fact a lake of nearly 100 acres area; also, the State Arsenal and St. Vincent's Academy. The ground is rocky and uneven; some portions of it being elevated, and commanding a fine view of the rivers, villages, and country, that surround the island of New York. A magnificent park might be made on this ground; a park every way worthy the great commercial metropolis. Jones Park is recommended as being more available at present, having woods on it that may be thinned out, and afford shade and ornament at once, and at a comparatively trifling cost.

Admit this; though we have little faith in the practicability of making handsome park trees of many of those now standing on Jones' woods. A few around the outsides would do very well. But what is a park of 150 acres to New York, not as she is, but as she will be five and twenty years hence? Nothing! matter, they would demand them both. Is it not economy to provide for the public health? Most surely it is; and if no provision is now made for vacant ground, where people can enjoy fresh air and healthful exercise, what will become of them by and by, when the whole island is densely occupied? Will it be possible then for such immense masses of human beings, crowded together in the midst of filthy streets and alleys, to avoid epidemic diseases? and would not one season of cholera cost more than both the talked-of parks? No large city in the world is so destitute of public grounds as New York. "We hope this will not long be so.