Adjutages and fountain jets

2263. Adjutages are of various sorts. Some are contrived so as to throw up the water in the form of sheaves, fans, showers, to support balls, &c.; others to throw it out horizontally, or in curved lines, according to the taste of the designer; but the most usual form is a simple opening to throw the spout or jet upright. The grandest jet of any is a perpendicular column issuing from a rocky base, on which the water falling produces a double effect both of sound and visual display. A jet rising from a naked tube in the middle of a basin or canal, and the waters falling on its smooth surface, is unnatural, without being artificially grand.