In combination with my blocks, this device might be made very effectual. When the Apiarian perceives that a hive is being robbed, let him shut up the entrance: before dusk he can open it and allow the robbers to go home, and then: put in a small piece of musk: the entrance next day may be kept so contracted that only a single bee can enter at once. In the union of stocks the same substance might be used advantageously. A short time before the process is attempted, each colony might have a small dose of musk (a piece of musk tied up in a little bag,) and they would then be sure to agree. I prefer, however, in most cases, the use of scented sugar-water. By using my double hives, and putting a small piece of gauze-wire on an opening made in the partition, the two colonies having the same scent will always agree; this will be very convenient where they are compelled to live as such near neighbors, and enables the Apiarian at any time to unite them and appropriate their surplus stores. These double hives are admirably adapted to the wants of those who wish to make the smallest possible departure from the old system, as they need make no change, except to unite the stocks instead of killing the bees. I have already remarked that no operation should ever be attempted upon bees, by which a whole colony is liable to be excited to an ungovernable pitch of fury. Such operations are _never_ necessary; and a skillful Apiarian will, by availing himself of the principles laid down in this Treatise, both easily and safely do everything that is at all desirable, even to the driving of a powerful colony from an old box hive. When bees are improperly dealt with, they will "compass" their assailant "about," with the most savage ferocity, and woe be to him if they can creep up his clothes, or find on his person a single unprotected spot! On the contrary, when not provoked by foolish management or wanton abuse, the few who are bent on mischief, appear to retain still some touch of grace, amid all their desperation. Like the thorough bred scold, who by the elevated pitch of her voice, often gives timely warning to those who would escape from the sharp sword of her tongue, a bee bent upon mischief raises its note almost an octave above the peaceable pitch, and usually gives us timely warning, that it means to sting, if it can. Even then, it will seldom proceed to extremities, unless it can leave its sting somewhere upon the face of its victim, and usually as near as possible to the eye; for bees and all other members of the stinging tribe, seem to have, as it were, an intuitive perception that this is the most vulnerable spot upon the "human face divine." If the head is quietly lowered, and the face covered with the hands, they will often follow a person for some rods, all the time sounding their war note in his ears, taunting him for his sneaking conduct, and daring him, just for one single moment, to look up and allow them to catch but a glimpse