Salthill Nursery, Mr. Stewart. - This nursery, which is of considerable extent, has been established upwards of twenty-five years; and we take blame to ourselves for not having before given some notice of it in this Magazine. It contains, near the house (which is on the left-hand side of the road when going from London), several green-houses, with a good collection of the more showy and recently introduced house plants; a good assortment of choice herbaceous plants, including the newest annuals; with a number of rare trees and shrubs: and, on the opposite side of the road, an ample stock of forest and fruit trees. Among these is an assortment of apples, placed in a line, including all those figured or named in Ronald's Pyrus Malus Brentfordiensis; and some others, not described anywhere. In the green-houses we noticed, among other plants, the Cuscuta sinensis in great vigour; a choice assortment of fuchsias, many of which were raised from seed by Mr. Stewart, and which promise some new varieties; and a pelargonium-house, fully stocked with the best varieties. In one of Mr. Stewart's houses a Cob£a lived nine years, producing vigorous growth, and abundance of flowers every year. Among the green-house plants in the open air was a large Lambertia formosa, splendidly covered with its beautiful flowers; and also a new variety of Passiflora cï¾µrulea. On each side of the front entrance to the nursery is a fine weeping ash, planted by Mr. and Mrs. Stewart, to commemorate the death of George III.; and, at the side entrance, is an evergreen oak, already a fine tree, placed there to commemorate the accession to the throne of George IV. We intend in future to visit this garden periodically; as well as that of Mr. Brown, at Slough; and also that of Mr. Baillie, which we did not now see.