The use of this "observation frame" must now be explained more fully: the top lid of the bee box, Plate I, fig. 1. G. H. being thrown up, will screen the "operator" from the bees, which are flying in and out in the front of the hive or box. The back lid, I. J., is let down, and supported by the quadrants Q. Q., and forms a table, the box having been raised from the ground by the four legs, L L L L. The observation frame is placed opposite to whichever bee-frame is to be examined; the two pins, _a, b_, fig. 3, running into the holes 1, 2, 3, 4, 5, &c., made in the bottom board. The small bolts, Plate I, secured at the top, as at _r_, and the back _m_: the long spindle, S, is run through the 2/8 hole in the back of the observation frame, as at Z, and the end of the spindle screwed into the screw socket _t_, at the back of the bee-frame _w_; the two pieces of tin on the right and left of the bee-frame are pulled out (of course the observation frame being empty, and having the piece of tin from its front taken out), the operator holding by the handle, _z_, of the spindle, gradually draws out the bee-frame into the observation frame, and after examining the bees and comb, gently returns the bee-frame into its groove in the floor-board: the two slips of tin are then replaced in the backs of the bee-frames: the spindle is unscrewed and withdrawn, the bolts are unfastened, the observation frame being kept firmly in its place, held by the left hand of the operator, whilst with the right he runs in the long slip of tin, _d_, fig. 3, into the front of the observation frame, to keep the bees (escaped from the returned bee-frame), until the observation frame is again fixed opposite to another bee-frame, when the tin is withdrawn and the bolts fastened as before. It has been shown that by these means, each bee-frame, and the bees and comb contained in it, can be easily drawn out and examined, without interfering with any other part of the hive, or occasioning the loss of a single bee. The whole of the interior of the hive is thus open to inspection at any moment, and a choice can be made of the combs containing the most honey, or the bee owner enabled to trace the devastation of the honey moth, and ascertain the presence of any other enemy, and this without the assistance of smoke, which must be injurious both to the bees and their brood. When the bee-frame is returned and secured, the observation-frame is removed; then the lid, I J, being shut up and bolted, and the upper lid, G H, closed, the box may be locked up. When the bees have been shut in with the slide in the front, the hive or box is ready to be transported anywhere, to procure new pasturage for them, which, as every experienced bee-keeper knows, is of the greatest benefit to prolong their honey-harvest.