(2) It is necessary that the beekeeper know what plants are likely to furnish the surplus honey and their approximate period of bloom so that he can determine the limits of the heavy brood-rearing period in order to secure the largest possible working force for the honey flow. (3) Colonies should be in a normal condition at the beginning of this period. (_a_) If the surplus is from an early flow, this normal condition can be obtained only by proper management the previous late summer and autumn, together with good wintering. Good queens, preferably young, together with sufficient room for brood rearing and winter stores, are important conditions during late summer and autumn. (_b_) Stores and protection are important factors in early brood rearing. (_c_) The character of the brood combs and the race of bees each have some influence upon brood rearing. (4) During the time that workers for the harvest should be reared brood rearing should be constantly accelerated. (5) Brood rearing is often restricted during this period (_a_) because of limited stores and (_b_) because of limited room in the brood chamber. =Using Available Workers to Best Advantage During the Honey Flow.= Brood rearing, which is of primary importance during the preceding period, becomes of secondary consideration at about the beginning of the honey flow, because this is nearing the limit beyond which time the resulting bees develop too late to take part in gathering and storing the crop of honey. At this time, therefore, there is a radical change in purpose of the manipulations. Instead of continuing the expansion of the brood chamber, the policy of the beekeeper should now be rather a concentration of the workers and brood. There is perhaps a limit to the number of workers that can be profitably kept in a single hive and set of supers, but this limit is seldom reached, the usual mistake being in having too few. Each colony should have its brood chamber well filled with brood in a compact form and be so crowded with young and vigorous workers that they will immediately occupy the supers when the honey flow actually begins. The brood chamber of colonies occupying more than one hive body should at this time be reduced to one, any extra brood being used in colonies having less than one brood chamber full of brood. After this operation, should there still be some colonies left with the brood chamber but partly filled with brood, they should be filled with combs of brood and adhering bees (without the queen) drawn from some colony or colonies too weak to work well in comb-honey supers.