Many persons in your city, or farther seaward, suppose the region of the great Lake Ontario, one, if not inhospitable in soil, very severe in its climate, because it verges toward Canada. But it is quite otherwise. Often, while Utica and Rochester, and even Albany, are under the incubus of intense cold, or severe frosts, the lake shore here is in the enjoyment of comparatively moderate weather. This spring has been cold, and vegetation is backward; but within a few days the weather has been delightfully tempered with warm sunshine, and genial spring showers.

Oswego is situated directly on the lake shore, divided by a rapid river. The city itself, slopes on each side to the river, and furnishes innumerable positions where the most picturesque sites for dwellings or gardens are found. Shade trees abound, the city ordinances requiring them to be placed along the streets, by the owners of the contiguous property. Horticulture receives much attention - and some of the private grounds here are celebrated for good taste in arrangement, and for the delicious fruits, and exquisite flowers they produce. The ladies of this city devote themselves with much zeal, to matters of rural embellishment, and many of them are largely in advance of the other sex in their devotion to pomology, and the beauties of the floral kingdom. The soil and climate are admirably adapted for most kinds of delicious fruits, especially pears, plums, cherries, and peaches. Oswego is the paradise of roses. Nearly every variety is cultivated here. In no place, Philadelphia excepted, have I ever seen such gorgeous and attractive horticultural exhibitions.

It may gratify you to know that the en-tire fruit crop in this region promises a rich harvest, the trees now beginningta show their blossoms in profusion.

A, lady friend, who is eminent here for her good taste, and varied knowledge, on the subject of horticulture, has two favorite pear trees in her garden, which yielded delicous fruit last year, which have no perceptible bark for two or three feet from the ground - nothing but the naked wood presenting itself to the eye or the knife. Can you inform her what gives vitality to the tree, or how the sap circulates? [See Lind-ley*s Horticulture. En].

How can a hard-pan hill, which slides badly in wet weather, be covered with verdure? A friend has a noble stone residence on the high bluff of the lake, and the bank slides and makes an unsightly and rough aspect in front of his elegant mansion? Is there anything that will vegetate there, and keep the surface fresh, and from sliding? [Plant it thickly with young Buckthorns. En.] W. A. Oswego, May 14.