SHELTERING. 



357 



of the latter remained quiet. The next day, the cold weather 

 returned, and lasted three weeks longer. Then we discovered 

 that the weak colonies, that had had a cleansing flight, were 

 alive and well, while the strong ones which had remained con- 

 Hned, were either dead or in bad condition. 



640. In order to shelter bees more efficiently, in outdoor 

 wintermg, against climatic influences, Apiarists have devised 

 hives, with double walls, filled at the sides, as well as on top, 

 with some light material non-conductor of heat. Some are 

 made on the same principle as the old two-story double-wall 

 L. hive (fig. 131) without packing. 



Fig. 133. 



ROOT CHAFF HIVE. 



(A B C of Bee-Culture.) 



The most wide-spread style, is the chaff-hive, of A. I. 

 Root. This hive is far superior to single-wall hives for out- 

 door wintering. It w^as formerly made in two stories, all in 

 one piece, which rendered it very inconvenient. They now 

 make it as we made ours for years. The cap may be filled with 

 chaff, di-y leaves, or a cushion of any warm material. Some 

 Apiarists also use one-story chaff-hives with loose bottom- 



