A hasty run through these grounds during the meeting of the American Horticultural Association on the 20th of January, afforded me much pleasure. It is in the city, and consequently the grounds are not large, and the chief interest is in horticultural buildings.. A vegetable house for early forcing was particularly attractive. Tomatoes were ripe, and an enormous crop coming, on to succession. English cucumbers,apparently near 20 inches in length were in abundance, and beneath is a cellar in which were an abundance of enormous mushrooms. Hot water pipes go down through the mushroom beds, by which Mr. Cullen, the intelligent gardener, is able to keep the equable temperature of 6o°, so essential to success in the culture of this delicious vegetable. A warm-house, which, in the literature of gardening would probably be called a stove, was devoted to a collection of heat loving plants, but particularly orchids. A large number of these curious plants were in blossom, and some large specimens of the well known Cypripedium insigne had scores of blossoms on them. The white bracted Poinsettas were here of a much clearer white than is generally seen. A remarkably curious specimen of the Screw pine (Pandanus) gives one of the houses great interest.

Northampton county is the headquarters for the slate industries of Pennsylvania. Advantage is therefore taken of the cheapness of the article, to make the benches for roses and other things, out of it, which not only gives durability, but also a neatness which is pleasant to find in gardening structures.