138 



thb bbb-keepbr's guidb; 



nectar. The cane-sugfar of nectar is certainly digested or 

 changed into the more osmotic and assimilable glucose-like 

 sugar of honey. Very likely these compound racemose glands 

 supply the digestive ferment which accomplishes this part of 



Fig. 59. 



OhtHiJ tSystem of Hee^ after Oirard, 



digestion. We similarly digest all the cane-sugar that we eat. 

 As honey is not always fully digested, the drones and queens, 

 as well as the workers, possess these glands. 



Wolff's glands are large follicular glands (Fig. 60), situated 

 at the base of the mandibles. From their position we might 

 suppose that their secretion was useful in forming wax into 

 comb, but their large size in the queens, and the fact that the 



