

FABMEES BULLETI2J 1(E2. 



shown in the illustration, they make the equivalent of a halved joint 

 at the comers. The sides may be held in place and together by nails 

 or by any sort of special hook. The entrances for the colonies dur- 

 ing winter should be in the ends of the case, as shown. These will be 

 discussed later. 



The top of the case may be made to telescope over the sides, as 

 shown in figure 2, or it may be made in any other way desired so that 

 it is adequate to keep the packing absolutely dry throughout the 

 winter. The telescope cover has much to commend it, especially in 

 the ease with which the covers may be stored in sunmier. The top 

 of the wooden cover should be covered with a roofing paper of first 

 quality in order that the protection will last for years. If the tele- 





Fia. 3. — ^An apiary packed for wmter m foui -colony cabes such as, are used ia the 



Bureau of Entomology apiary. 



scope type of cover is used, no cleats other than the sides and ends of 

 the telescoping portion will be needed. 



A tunnel (fig. 2, a) is also needed through which the bees may 

 pass on warm days and to permit ventilation. This is best made of 

 two boards, one the width of the packing (e. g., 6 inches) and the 

 other this width less the extension of the bottom board. In most 

 cases this extension is 2 inches, so the lower board will be 4 inches 

 wide. These are held apart by strips three-eighths of an inch thick. 

 This is the height of the usual hive entrance in winter, and the pas- 

 sage between the boards is therefore the same height ^s the Mve en- 

 trmce. In order that the tunnel may not get out of alignment, these 

 strips are continued back, as shown in the figure, and these projec- 

 tions extend into the hive entrances at the comers. The arrangement 



