It is bee nature to try to get into some small hole. To take advantage of this instinct the five sides of the swarm-catcher are perforated with holes about one half an inch in diameter. While the framework of the box should be light, it should also be strong and the materials good so that the swarm-catcher will last for years. A convenient size has been found to be eight by eight by sixteen. A hole to fit the size of the poles should be bored in the centre of the top and one at the bottom. The big wire hook should be screwed into the top far enough from the centre so that it will not be interfered with by the projecting end of the pole. A slot should be cut lengthwise of the top, sufficiently large to allow a frame of honey-comb to be put in so that it hangs down inside to attract the bees. This honey bait is essential to the successful working of the swarm-catcher. You can devise other ways of suspending it to the top inside of the box. It is thought that a coat of green paint on the outside and one of black on the inside induces the bees to enter the box more readily. A swarm-catcher like this cuts out all the loss of time and danger of losing a valuable swarm of bees while preparations to hive them are going on. And you can practically catch a swarm anywhere with this device. If they light on a stone wall, a tree trunk, or on the ground, you simply brush a pint or so of them into the box, stick the sharp lower end of the pole into the ground near by, and go off and leave them to go in at their leisure. A whiff or so of smoke is needed when you first go up before beginning to wield the brush. For swarms hanging in the ordinary way from limbs of trees or vines, while the bees are clustering, take a frame from one of the hives and hang it in the swarm-catcher. It is best to take a comb containing developing brood and some honey. This forms a well-nigh irresistible lure for the swarming bees. One look at the pendant mass of bees will tell you what length of pole you need in the box. Put on your veil and gloves and hoist the box up into the tree. Put the open end of the box up against the mass of bees and get as many of them into it or onto it as possible. Catch the branch with the hook on the box and give it a vigorous shaking. This unsettles the rest of the bees and they will be attracted instinctively to follow the rest into the box where the brood cells are. Once the bees are safely clustered in and on the box there is no rush about hiving them. They are safe to be left hanging by the hook within ten feet or so of their original clustering place or with the pole stuck in the ground near by. They are secure there for hours, even for days, but one usually has time to hive them the same day. The swarm should not be left in the hot sun.