WINTERING.—Chapter XVIII. 
Ten cubic feet of space is sufficient for each colony. The entrance blocks 
should be removed, and, if any mice are in the cellar, the entrances should 
be covered with a coarse 44-inch mesh screen. This will allow the bees to 
pass through, but will shut out the mice. In cellars where the temperature 
remains as low as 45 degrees, the entrances may be reduced to openings 3% 
hy two inches, stronger colonies being given larger entrances. If the bees be- 
come uneasy during the winter, it is likely that the temperature or ventila- 
tion of the cellar needs regulation. Bees should be put in the cellar immedi- 
ately after (what is probably) the last good flight—usually in November in 
the northern part of the United States—and taken out the latter part of 
March or the first of April, at a time when the first natural pollen may be 
gathered, when it is warm enough so that they may have frequent flights. If 
put out when the weather is still rather cool, some protection, such as tarred 
paper wrapping, should be given the colonies. See pages 105 and 106. 
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