1520. Situation, relatively to the character of the ground's surface, is the first consideration respecting water, in whatever form it may appear. No situation in which this material may be supposed to exist and expand itself into a body, can be truly natural, that is not a vale, plain, or hollow. Mountain streams are out of the question; and small lakes or pools, in hollows on elevated grounds, are more to be considered as accidental than as general nature. Even artificial lakes or rivers on a considerable scale, to be natural, must either be, or seem to be, situated in the lowest part of the landscape then under the eye. If otherwise, if placed on the side of a declivity over which the eye can range at the same time, it may be attractive to a stranger at first view; but the want of truth or fidelity to the thing to be imitated, will soon bring on an increasing aversion to it in the mind of genuine taste.