Careful consideration is bestowed upon the proportions of the trees selected for gardens; such proportions being controlled primarily by the scale of the whole composition, and secondarily by the relative position in the landscape. Very high trees are but sparingly employed, even for extensive grounds, and special attention is given to their aspect in relation to the building. Though the setting sun may with advantage be screened by a clump of large trees, particular care must be taken not to hide the rising moon from view. Another objection made to the unlimited use of large timber in a garden is that it excludes light and air and is therefore unhealthy.
