[Sidenote: The Flower Garden.] The garden is located in low ground to the north-east of the promenade, and close upon the line of Fifth avenue, the grade of which opposite the centre of the garden is about twenty feet above the present level of the ground; this, for the reasons above stated, we consider a desideratum, and have suggested that over the arcade or veranda that we propose should be built against the east wall of the park in connection with the garden, a structure should be erected, with an entrance on a level with the avenue, so as to give an opportunity for a view of the garden, both from this level and from another story above it. This idea is not, of course, necessary to the design, and the sketch submitted is merely a suggestion to show what may be done at some future time.[13] [13] NOTE, 1868.—While the construction of the park was in progress Messrs Parsons & Co., who held a contract granted by the Commissioners, employed us to develop this general idea in the form of a two-story glass building, of which the upper section is the conservatory proper and the lower portion is proposed to be used for the exhibition and sale of flowers, but the design has not yet been executed. The plan of the flower-garden itself is geometrical; and it is surrounded by an irregular and less formal plantation of shrubs, that will serve to connect it with the park proper. In the centre it is proposed to construct a large basin for a fountain, with a high jet; other smaller jets are prepared for, as indicated; and, in connection with the north wall, which will be somewhat below the surface of the ground beyond, it is proposed to arrange some such wall fountain as the celebrated one of Trevi. The water for this fountain will, in the present case, be supplied from the skating pond and also from the Reservoir, and will fall into a semi-circular marble basin, with a paved floor. Such a fountain is out of place unless it can be furnished with an ample supply of water; but, in the position assigned to it on our plan, there will be no difficulty in procuring all the water that can be required for the purpose; and it seems desirable, therefore, to take advantage of the opportunity offered, for the effect of a sculptured fountain of this sort is quite distinct from that produced by a jet d’eau. * * * * * A colored plan of this part of the design is illustrated to an enlarged scale on study No. 11. * * * * * To the north-west of the promenade is a slope, offering an appropriate site for a summer-house, that in such a situation should have some architectural pretension; and further to the west, near Eighth avenue, is a stretch of table-land, terminated by an abrupt rocky descent, that suggests itself as well suited for a Casino or refreshment house.[14]