Mr. M’Phail, when in practice, was reckoned one of the first growers of the Pine Apple in England; he grew the plants, and also fruited them chiefly in pits; the pots plunged in bark, and the bark inclosed by a perforated wall of his invention, and heated by linings of dung. He also grew them in larger buildings. _Form of House._ No great consequence is attached to the construction of the house by this gardener. Where Pines are to be grown in a hot-house along with vines in Speechly’s manner, he says, “I think a good method is to make it into one or more divisions of about forty feet long, sixteen feet wide;” the back wall thirteen feet, and the front wall nine feet, the upper four feet being composed of sliding sashes. The slope in the roof will, by these dimensions, be four feet, or about three inches to a foot. The pit is to be surrounded by a path, which behind will be four feet higher than in front, and, consequently, the end paths must have steps. The fire-place being placed in the back wall, and supplied from the shed behind, the flue should be carried round about the inside, stretching from the fire-place across the end and along between the path and the front wall, leaving a cavity of four or five inches wide between the flue and the wall, to admit the heat to rise freely, and to prevent the roots and stems of the vines planted in the border against the front wall from being too much heated. At that end of the division farthest from the fire, after going across the house under the back path, the flue must rise above the path, and go along close against the back wall communicating with the chimney, which stands at the end corner of the wall just above the fire-place. The flue from the fire-place along the front wall to the opposite end of the house, is to be made nearly three feet deep, seven inches wide, and when it riseth above the back side path against the back wall to the chimney, it should be about three feet six inches deep of brick, on edge two inches thick, besides the plastering, and covered with inch thick tiles closely joined with fine mortar to prevent the smoke from getting into the house among the plants. The mouths of the fire-places should be about sixteen inches wide, twelve inches deep, and the doors and their posts may be made of cast iron. The grates should be thirty inches long, and their bars of uncast iron made to take out at will. Some have the fire-places wholly of cast iron, one or more inches thick, in form of a square funnel about three feet in length. This appears to be a good method, because they keep in repair several years, whereas the sides of the fire-places built of brick generally require repairing yearly.