MOVABLE-FRAME HIVES. 



159 



other labored contrivances, so complicated as to require 

 almost as close supervision as a hot-bed or green-house. 



fMky^ 



Fig. 65. 

 HIVE, WTTH EXTRACTING SUPERS SET BACK FOE VENTILATION 

 IN VERY HOT WEATHER. 

 The cap is thrown back to show the straw mat. 



334. With an independent bottom-board, ventilation can 



