400 



PASTURAGE AND OVERSTOCKING. 



The flowers of red clover (fig. 157) also produce a large 

 quantity of nectar; unfortunately its corollas are usually 

 too deep for the tongue of our bees. Tet sometimes, in Sum- 



Fig. 154. 



WHITE CLOVER. 



(From Vilmorin-Andrieux, Paris.) 



mer, they can reach the nectar, either because its corollas are 

 shorter on account of dryness, or because they are more 

 copiously filled. 



Fig. 155. 



IMPLEMENT FOR ASCERTAINING THE LENGTH OF TONGUE OF BEES. 



(From the American Bee Journal.) 



Attempts have been made to select, for breeding, bees with 

 longer tongues, in order to secure the honey of the red clover 



