No problem confronting the beekeeper in most parts of the United States
is of more importance than the proper wintering of bees, yet it is one
which is sadly neglected. It is urged that before attempting to make
packing cases for the wintering of bees the beekeeper study Department
Bulletin 93, Temperature of the Honeybee Cluster in Winter, and
Farmers' Bulletin 695, Outdoor Wintering of Bees.