As in the case of outdoor wintering, the essentials to success in caring for a normal colony of bees from the end of one season's honey-flow to the beginning of the next lie in providing three things in abundance: (1) Stores of good quality, (2) protection from wind and cold, and (3) room for the rearing of brood at appropriate times. These factors must not be lacking at the right times, and if any one is omitted it may prevent the bees from gathering the crop of the following season. These three factors do not apply equally throughout the period of relative inactivity, but as certainly as any one of them is decreased, just so certainly will the crop of the following year be reduced.

In practicing cellar wintering it is unnecessary to leave so much honey with the bees during the time that they are in the cellar, and it is not necessary during that period to leave room for the rearing of brood. During the coldest part of the winter the bees need especially protection from cold and wind, although enough good stores must be in the hive to keep them through that period in good condition. Probably a large part of the failure of beekeepers in practicing cellar wintering comes from the fact that before and after the bees are in the cellar the important factors of stores and breeding room have not been adequately supplied. Before the bees are put into the cellar they must have room for breeding and stores in abundance, and after they are taken out these two factors must be present in greatly increased abundance.