The most extensive culture of Grapes under glass which we have had an opportunity of seeing in this country, is that of Mr. Strong. He has three houses, each upwards of 200 feet long. One is a forcing-house, and the crop was cut; but in two of them there was a full crop on the vines, all remarkably well-grown, well-colored, and fine. We think Mr. Strong told us that he would send some 3000 lbs. to market this season. The early crop from the forcing house usually sells at $2 per lb., and the autumn crop at fifty to seventy-five cents. If the culture of Grapes under glass for market can be made profitable, we think Mr. Strong will make it so. His houses are plain and inexpensive, but well adapted to the purpose. The roofs are curved; and each of the cold-houses has a brick flue, which can be used in spring to keep out late frosts, and in fall to ripen off late varieties.

Mr. Strong made a superb display on the tables of the Horticultural Society. Among his collection we noticed fine large bunches of Muscat of Alexandria, Cannon Hall Muscat, and Damascus, a very large, distinct, oval, purple Grape. Three feet of a Hamburg vine was shown with fourteen large bunches on it.

Mr. Strong's residence is on an elevated situation, adjoining the ground formerly occupied by Wm. Kenrick's nurseries, commanding a fine view of the environs of Boston. His grounds are extensive and susceptible of great improvement. Land in the vicinity is highly valued for suburban residences. At the base of the hill occupied by Mr. Strong, we find the residence of his father-in-law, Joseph Breck:, Esq., author of the "The Book of Flowers," whose name has been associated with Agriculture and Horticulture, as long as We can remember. His establishment here consists of a garden of three acres, two graperies and a plant-house. The garden is tastefully laid out, and mostly occupied with annuals, herbaceous perennial plants, Roses, and the finer shrubs; to all of which Mr. Breck finish. His graperies contain a great number of varieties, and all were bearing a fine crop. The hour of our visit was too late in the evening to allow as more than a glance at them.

Mr. BRECk and his son carry on an extensive seed business in town, and this suburban retreat affords them pleasant and profitable employment, and recreation during their morning and evening hours. Business of the day falls with comparative lightness on men who enjoy such privileges; the more so when they possess habits and tastes capable of appreciating them.