The Woodbury Unicomb Hive has many advantages over similar hives as previously constructed. The engraving shows the interior compartment divided into six; these are sis Woodbury frames. The inner sash opens, to admit of hanging up the frames on the notches prepared for them. The width of the hive between the glasses of the sashes is just sufficient to admit of one thickness of comb, with space on each side for the bees to pass and repass, the same as in Neighbour's unicomb. There is, however, a great advantage in the use of this hive; with it, anyone possessing a Woodbury box or straw bar and frame hive can readily commence an unicomb, and as readily put the combs and bees back into the square hive again. The outside shutters on each side are composed of Venetian blinds, admitting daylight, but obscuring the rays of the sun. We had the entrance made at one end, as represented in our drawing; this alteration was made after the pattern of the hive from which Mr. Woodbury allowed us to copy. His own was intended to stand wholly out of doors, and had two central entrances, one on each side at the bottom, the hive itself turning on a pivot. When the hive was being examined on one side, the entrance was closed by a piece of wood inserted in it; and when the other side was brought round to be inspected, the piece of wood was withdrawn, and placed in the opposite entrance. This was a most ingenious contrivance; but it did not answer our purpose for indoors. When Mr. Woodbury sent us his hive, we were preparing for the International Exhibition of 1862, and, in placing it against the sides of the building, we followed our old plan for ingress by having the entrance at the end. Since that time, we have made a considerable improvement by adapting Mr. Woodbury's cleverly contrived turn-table to suit our own hive. Like Mr. Woodbury's hive, ours has two iron wheels, the one fixed to the bottom of the hive, the other fixed to a stout board running the full length of the hive; on these two wheels the whole hive turns. In the centre there is an opening into the hive, with a passage-way running underneath, so that the bees' entrance is in no way affected by the position of the hive, which revolves, to suit the convenience of visitors inspecting it. Should the queen, with her attendants, not be visible on one side, the other side of the comb can be brought into full view, and examined with the same facility as a picture, or as articles are inspected in a shop window. Thus, in the unicomb observatory hive, the sovereign mother, her train of servitors, the drones, with their aimless movements, and the crowd of ever-busy workers--either building their combs or storing honey--may be always seen, as presenting a veritable _tableau vivant_.