Should it, however, so happen, as it sometimes may, owing to a variety of causes, such, for instance, as the negligence, or unskilfulness, or unavoidable absence of the Bee-master at a critical time, or from any other cause, should it, I say, so happen that the pavilion, or middle-box, should swarm, take such swarm into one of the end-boxes, prepared for such an event, by merely making an entrance to it, at or as near as possible to the corner farthest from the entrance into the middle-box; and before this new entrance fix a small alighting board. The swarm will thus become a family of itself, and as much a stock pro tempore, as if it were placed on a separate stand, provided the dividing-tin, which separates the middle-box from that in which the swarm is put, be carefully adjusted, and made perfectly tight and secure, so that a Bee cannot pass from one box to the other. To this material point the apiarian will necessarily attend when he first removes the end-box in order to put the swarm into it. In the evening place the box containing the swarm on its floor, just where and as it was before it was taken off. Let the Bees thus managed work two or three weeks, or as the nature of the season may require,--I mean--until the end-box appears to be pretty well filled with combs. Then close up the exterior entrance of the collateral-box containing the swarm of Bees, and draw out the sliding-tin which hitherto has separated the two families or colonies, and the Bees will unite, and become one family. The apiarian will likewise witness with pleasure the effect of ventilation in the hive; for as soon as the Bees have deposed one of the Queens, and the end-box has been cooled by means of the cylinder-ventilator, he will discover that the combs will be presently emptied of every material necessary for the support of the young larvæ; so that the combs, that had been so recently constructed for a seat of nature, soon become receptacles for pure honey, and the numerous Bees become the subjects of one sovereign in the middle-box. This is a neat method of re-uniting a swarm to its parent-stock; and the operation is so easy that the most unpractised apiarian may perform it without subjecting himself to the slightest danger of being stung by the Bees. It can however only be practised with Bees in boxes. Another and a more prompt method of returning a swarm to its parent-stock, and which is practicable with swarms from cottage-hives, as well as with those from boxes, is the following.