180 PRODUCTION OF EXTRACTED HONEY 
along the top. Each of these places will leave an opening large 
enough to permit the bees to find their way out. To prevent 
those from the outside from coming in, wire cones are placed over 
the openings. 
Still another common plan is to place ordinary bee escapes, 
Fig. 91.—Comb at right built on full sheet of foundation; at left, without foundation. 
such as are to be purchased from any dealer in supplies, in the 
corners of each window. This plan does not work well in 
practice. Any method that will permit bees to go out without 
letting outsiders in, will be satisfactory. 
PREPARING FOR THE IARVEST 
The importance of having combs built on full sheets of foun- 
dation to prevent the building of drone comb is mentioned else- 
