(2) The use of full sheets of foundation in the brood frames has the decided advantage of resulting in straight combs having the maximum number of cells of the worker size, but is more expensive than the narrow strips and allows a more rapid building of comb in the brood chamber, which under some conditions is considered a disadvantage.

(3) The exclusive use of either narrow strips or full sheets of foundation in the brood chamber when hiving swarms necessitates the use for a short time of a queen excluder ([fig. 2]) if the supers are transferred from the parent colony to the swarm at the time of hiving, since otherwise the queen would probably enter the sections and a brood nest be established there. To avoid the use of queen excluders for this purpose, one or more empty combs maybe used in each brood chamber, the remaining frames containing full sheets of foundation. This empty comb also serves as a storage place for pollen that may be gathered before the other combs of the brood chamber are constructed. Otherwise this pollen may be stored in the sections ([p. 46]). It is also probable that fewer colonies will "swarm out" or desert their hives if hived in a brood chamber containing one or more empty combs than if foundation only is used. A disadvantage of this plan is that the cells near the top bar of the comb may be so elongated as to interfere with the complete drawing out of the foundation in the adjacent frame. Empty combs can not well be used in connection with narrow strips of foundation, since their use favors the construction of drone comb.

(4) Empty combs are sometimes used with the idea of saving the bees the work of constructing a new set of combs. Under same conditions this is false economy and gives poorer results than starters or foundation. With very strong colonies, or with the brood chamber contracted to five or six frames, empty combs in the brood chamber may give good results. Medium colonies on a full set of empty combs are included to store the honey in the brood chamber and neglect the supers.

(5) Combs of honey are sometimes used on which to hive swarms. In some instances the beekeeper uses frames of foundation or empty combs above the brood chamber previous to and during the first few days of the honey, flow for the purpose of discouraging swarming and afterwards uses these partly filled combs on which to hive swarms. In order to make room for the queen, this honey is rapidly carried above, and stored in the sections.

(6) Combs of sealed brood in which no eggs have been laid during the previous 10 days or 2 weeks may be used. Such combs are usually available toward the close of the swarming season from colonies that have swarmed 10 days or 2 weeks before. This plan is especially desirable when the beekeeper runs short of hives during the swarming season. In some localities, however, the character of the flow is such that the colonies may later again prepare to swarm when hived on either empty combs or combs of sealed brood.

EXTREME CONTRACTION OF THE BROOD CHAMBER WHEN HIVING SWARMS.

Some beekeepers contract the brood chamber, when hiving swarms, to five or six frames, the remaining space being filled by means of division boards or "dummies." This reduction in the capacity of the brood chamber results in practically all the honey being stored in the supers and also restricts brood rearing at a time when the resulting bees develop too late to become gatherers. This is especially adaptable to locations furnishing an early flow of white honey followed by a later flow of darker honey. The white or more marketable honey is stored in the supers and later the brood chamber is expanded and provisioned for winter with the less desirable honey. Some beekeepers accomplish a somewhat similar result by hiving two swarms together in a single hive body.

When practicing contraction it is best to give the full amount of room at the time of hiving the swarm and to reduce the space three or four days later, as otherwise the bees are apt to "swarm out" because of their cramped quarters. Since contraction of the brood chamber is but a temporary expedient, it should not be continued beyond the time that its use is of advantage. If there should be a later honey flow, the brood chamber should be expanded in time to rear the bees for it. In any event, contraction should not continue so long as to interfere with securing the proper conditions of the colonies for winter ([p. 21]). Frames of foundation, empty combs, frames of brood or honey may be used to complete the set of combs when expanding the brood chamber, and these are usually given just before or at the close of the honey flow. Contraction of the brood chamber to less than one hive body, except in hiving swarms, is not usually advisable.

Swarm Control by Manipulation.

Swarm control by manipulation enables the beekeeper to operate a series of apiaries by visiting each at certain intervals, thus eliminating the necessity of an attendant in each apiary during the swarming season. The fact that bees usually, by the construction of queen cells, indicate about a week in advance their intention to swarm, enables the beekeeper to control swarming by examining each colony once a week during the swarming period and forestalling the colonies that are making preparations to swarm. It is also possible to manipulate all the colonies before any swarming occurs so that most of them go through the honey flow without swarming, thus eliminating the weekly examinations.