D D are ventilators. In the centre of each of the end boxes is a double zinc tube, reaching down a little below the middle: the outer tube is a casing of plain zinc, with holes, about a quarter of an inch wide, dispersed over it; the inside one is of perforated zinc, with openings so small as to prevent the escape of the bees; a flange or rim keeps the tubes suspended through a hole made to receive it. The object in having double tubing is to allow the inner one to be drawn up, and the perforations to be opened by pricking out the wax, or rather the propolis, with which bees close all openings in their hives. These tubes admit of a thermometer, enclosed in a cylindrical glass, being occasionally inserted during the gathering season; it requires to be left in the tube for about a quarter of an hour, and on its withdrawal, if found indicating ninety degrees or more, ventilation must be adopted to lower the temperature. "The grand object," as Mr. Nutt expresses it, "is to keep the end boxes and the bell glass cooler than the pavilion or middle box, so as to induce the queen to propagate her species there and there only, and not in the depriving part of the hive; by this means the side and upper combs are in no way discoloured by brood. The queen requires a considerable degree of warmth; the middle box does not require more ventilation than the additional openings afford. The bees enjoy coolness in the side boxes, and thereby the whiteness and purity of the luscious store are increased." The ornamental zinc top D must be left raised, and is easily kept in that position by putting the perforated part a little on one side. The boxes before described are placed on a raised double floor-board, extending the whole length--viz., about thirty-six inches. The floor-board projects a few inches in front. In the centre is the entrance (as our illustration only shows the back of the hive we must imagine it on the other side); it is made by cutting a sunken way, of about half an inch deep and three inches wide, in the floor-board, communicating only with the middle box; it is through this entrance alone that the bees find their way into the hive, access to the end boxes and the super being obtained from the inside. An alighting-board is fitted close under the entrance, for the bees to settle upon when returning laden with honey. This alighting-board is removable for the convenience of packing. The centre, or stock box, A, called by Mr. Nutt the _Pavilion of Nature_, is the receptacle for the swarm, E E are two block fronts, which open with a hinge. A semicircular hole, three inches long and two wide in the middle, is cut in the upper floor-board immediately under the window of each box; these apertures are closed by separate perforated zinc slides. The blocks, when opened, afford a ready means of reducing the temperature of the side boxes, and they are also useful for allowing the bees to throw out any refuse. [Illustration]