In no previous season do we recollect having seen these in better condition than they are at present; and that their noble avenues, broad gravel walks closely shaven verdant lawns, and shady retreats, are appreciated by the public, is evident from the number of visitors who daily frequent them. The flower beds are just now at their best; among them are famous masses of Lee's floribunda, integrifolia, and amplexicaulis Calceolarias; Mountain of Light, Flower of the Day, Tom Thumb, Frogmort, and Fair Helen Geraniums; the variegated and blue Mexican Ageratums; the Globe, Rieearton, and Carolina Fuchsias; the dwarf purple flowered Dahila telinda, which, when grown on poor soil, does not rise above a foot in height, and is very pretty; variegated Alyssum, quite a compact mass of snow blossom; together with beds of Robinson's Defiance Verbena mixed with Mangles' variegated Geranium; charming clamps of Clove Carnations, and of Rosa Devoniensis, The latter is found to bloom beautifully here every season, and is much admired, as is also the Souvenir de Malmaison. Surrounding the lawn are several fine pillar Roses, which, when in bloom, are striking and handsome. They vary from 12 to 15 feet in height.

The sorts are Brennus, ChSnidle, Coupe, d'Hebe, Lamargue, Dachas of Sutherland, Madame Laffay, Fulgent, Mrs. Elliot, and William Jesse, Ac The wall along the side of the broad walk from the "Flower-pot Gate" to the river, is covered with Roses, Honeysuckles, Chimonanthue, Ceanothnses, Magnolias, Jasmines, and Clematises, etc These are not so trimly trained as to render them stiff and formal; but are allowed such freedom of growth as gives them a luxuriant and graceful appearance. In the "fountain court" the basin is encircled with large scarlet Geraniums in pots, consisting of Tom Thumb, Flower of the Day, and standard Fuchsias, which give to this quiet square a gaity which it never before possessed. The way in which Mr. Neil, who is gardener here, winters these specimens is as follows: - As soon as frost sets in he packs them closely together in a cold frame, and keeps them perfectly dry till spring, when he fresh pots them, and places them in a gentle heat, in which they push rapidly and soon come into flower, and continue so all the season.

As regards the walks, they are in beautiful order - a condition in which they are maintained by means of boiling salt water applied to them, as often as they require it, from a machine something like that employed for the same purpose by Mr. Fleming. It is an oval copper cylinder encased (except the top) in iron, so as to have a flue all round it; it holds about 37 gallons of water, which is kept boiling by means of a furnace below, and it is spread over the walks from a perforated pipe like that attached to carts for watering streets. It is set on low broad wheels and is easily drawn by a couple of men, and all admit that its working and efficiency are most satisfactory. It was made, we were informed, in Kingston, from a plan furnished by Mr. Neil, and cost about 20l.

The large Vine has upwards of 1600 bunches of Grapes on it this season, and appears to be in excellent health. A new greenhouse, aerated by means of Moore's patent ventilators, has lately been put up for the accommodation of tender plants in winter, and we observed that the gold and silver fish pond and canal have been cleaned and otherwise put in good condition. - Garden Chronicle.