The best time for performing this operation is about the middle of the day, and when the weather is warm: It is essential that the operator be protected with a bee dress and gloves, as before described; and previous to commencing his task he must provide all necessary implements. These are--a couple of hives, both of which should correspond in shape and size with the hive from which the bees are to be driven; a cloth to tie round at the juncture when the new hive is placed on the old one; some string to keep the cloth in its place; an empty pail to receive the top of the old hive, if one of the old conical shape, but if the stock of bees is in a square box-hive with a flat top, a firm stool will be the best; and a tube fumigator with some fungus, which will complete the material of war. The bucket or stool must be placed securely on the ground, about a yard from the place where the full hive stands; then a few puffs of smoke, blown in amongst the bees, will cause them to retreat up amongst the combs. The bee-master must now turn the hive[25] upside down very gently, letting it rest in the pail or on the stool; he then quickly places the empty hive over the full one, and ties the cloth round it, to prevent any escape of the bees. If the cloth be damped it will cling the closer to the hives. The third hive, which should resemble the old one even in colour, is intended to be placed on the stand formerly occupied by the stock, so as to retain the few returning bees which had been absent in the fields. Care must be taken that all crevices through which it is possible for the bees to escape from the united hives should be effectually closed. When the two are fairly united, the operator will proceed by rapping the full hive gently with the hands or a couple of sticks, more particularly on that side where the combs are the most thickly placed--that is, if the hive be not equally filled on all sides. A stock is in the best condition for driving twenty-one days, or thereabouts, after a first swarm has issued; the brood will then have hatched out, the bees will quit more readily, and there will be no loss of larvæ in the cells. [Footnote 25: Care should be exercised in turning the hive over to keep the combs vertical by turning it in the direction in which they hang, and not crossways, or they are likely to break from their foundations.]