2-1/2 inches rise $12 per 1000. 3-1/2 " " 15 " 4-1/2 " " 18 " 5-1/2 " " 40 " 6-1/2 " " 60 " 7-1/2 " " 75 " _Sole-Tile--Pieces._ 2 inches rise $12 per 1000. 3 " " 18 " 4 " " 40 " 5 " " 60 " 6 " " 80 " 8 " " 125 " Few round pipe-tiles have yet been used in this country, although they are the kind generally preferred by engineers in England. The prices of round tiles would vary little from those of sole-tiles. Tiles are usually cut fourteen inches long, and shorten, in drying and burning, to about twelve and a half inches, so that, with breaking and other casualties, they may be calculated to lay about one foot each; that is to say, 1,000 tiles may be expected to lay 1,000 feet of drains. To assist those who desire to manufacture tiles for sale, or for private use, it is proposed to give such information as has been gathered from various sources as to the cost of making, and the selling prices of tiles, in England. The following is a memorandum made at the residence of Mr. Thomas Crisp, at Butley Abbey, in Suffolk Co., Eng., from information given the author on the 8th of July, 1857: "Mr. Crisp makes his own tiles, and also supplies his neighbors who need them. He sells one and a half inch pipes at 12s. ($3) per 1,000. He pays 5s. ($1.25) per 1,000 for having them made and burnt. His machine is Waller's patent, No. 22, made by Garrett and Son, Leiston, Saxemundham, Suffolk. It works by a lever, makes five one and a half inch pipes at once, or three sole-tiles about two-inch. The man at work said, that he, with a man to carry away, &c., could make 4,000 one and a half inch pipes per day. They used no screen, but cut the clay with a wire. The machine cost L25 (about $125). At the kiln, which is permanent, the tiles are set on end, and bricks with them in the same kiln. They require less heat than bricks, and _cost about half as much_ as bricks here, which are moulded ten inches by five. "Two girls were loading bricks into a horse-cart, and two women receiving them, and setting them in the kiln. They made roof-tiles with the same machine, and also moulded large ones by hand. The wages of the women are about 8d. (sixteen cents) per day." At the exhibition of the Royal Agricultural Society, in England, the author saw Williams' Tile Machine in operation, and was there informed by the exhibitor, who said he was a tile-maker, that it requires _five-sevenths as much coal_ to burn 1,000 two-inch tiles, as 1,000 bricks--the size of bricks being 10 by 5; and he declared, that he, with one boy, could make with the machine, 7,000 two-inch tiles per day, after the clay is prepared. Of course, one other person, at least, must be employed to carry off the tiles.