COMB HOHET. 



441 



only obstacle to its use, is that it hinders ventilation and free 

 access for the bees. 



The slatted honey board with zinc strips between the slats 

 is probably the best queen excluder made. The full zinc sheet 



Fig. 194. 



WOOD-BOUND ZINC. 



Fig. 195. 



UNBOUND ZINC. 



is more apt to get out of shape by being glued up by the 

 bees when propolis is plentiful. 



The greater or less necessity of queen excluders to prevent 



Fig. 196. 



SLATTED WOOD-ZINC HONEY BOARD. 



the queen from ascending into the sections and filling them 

 with broodj seems to depend much on location. We have 

 never found that queen excluders were sufficiently needed to 



