This general rule of the plan was calculated to give, in the first place, breadth, and, in the second, emphasis, to any general prospect of the Park. A want of unity, or rather, if we may use the word, of assemblage, belonged to the ground; and it must have been one of the first problems to establish some one conspicuous, salient idea which should take the lead in the composition, and about which all minor features should seem naturally to group as accessories. The straight, evidently artificial, and hence distinctive and notable, Mall, with its terminating Terrace, was the resolution of this problem. It will be, when the trees are fully grown, a feature of the requisite importance, --and will serve the further purpose of opening the view toward, and, as it were, framing and keeping attention directed upon, Vista Rock, which from the southern end of the Mall is the most distant object that can be brought into view. For the same purpose, evidently, it was thought desirable to insist, as far as possible, upon a pause at the point where, to the visitor proceeding northward, the whole hill-side and glen before Vista Rock first came under view, and where an effect of distance in that direction was yet attainable. This is provided for by the Terrace, with its several stairs and stages, and temptations to linger and rest. The introduction of the Lake to the northward of the Terrace also obliges a diversion from the direct line of proceeding; the visitor's attention is henceforth directed laterally, or held by local objects, until at length by a circuitous route he reaches and ascends (if he chooses) the summit of Vista Rock, when a new landscape of entirely different character, and one not within our control, is opened to him. Thus the apparent distance of Vista Rock from the lower part of the Park (which is increased by means which we have not thought it necessary to describe) is not falsified by any experience of the visitor in his subsequent journey to it. There was a fine and completely natural landscape in the Upper Park. The plan only simplifies it,--removing and modifying those objects which were incongruous with its best predominating character, and here and there adding emphasis or shadow. The Park (with the extension) is two and three quarter miles in length and nearly half a mile wide. It contains 843 acres, including the Reservoir (136 acres). Original cost of land to 106th Street, $5,444,369.90 Of this, assessed on adjoining property, 1,657,590.00 ____________ To be paid by corporation direct, 3,786,779.90 Assessed value of extension land, (106th to 110th,) 1,400,000.00 ____________ Total cost of land, $6,800,000.00[B]