English: From original book: "The usual form of gutter for conveying water from the roof consists of a large bamboo split lengthwise, with the natural partitions broken away. This is held to the eaves by iron hooks, or by long pieces of wood nailed to the rafters, — their upper edges being notched, in which the bamboo rests. This leads to a conductor, consisting also of a bamboo, in which the natural partitions have likewise been broken through. The upper end of this bamboo is cut away in such a manner as to leave four long spurs; between these spurs a square and tapering tunnel of thin wood is forced, — the elasticity of the bamboo holding the tunnel in place (fig. 66). "