1519. In the natural style, the principal object is to imitate real lakes, rivers, or rills, and their accompaniments; and of each of these natural characters we shall remark the leading circumstances in the originals and the imitations. All water is either running or stagnant. Lakes, ponds, and pools, are of the latter class; rivers, rivulets, and rills, of the former description. In certain situations, lakes may be created where the supply of water is moderate; rivers and rills only when it is abundant. Both characters, when they exist in nature, may be improved by studying the natural characteristics of each species.