82 THB bee-kbepbr's guide ; 



tral side of the body, separates near the head, and after pass- 

 ing around the oesophagus, enlarges to form the largest of the 

 ganglia, which serves as a brain (Fig. 27, 28). The uncovered 



Fig. 28. 



Ne^'vous ^System of Dro/ie^ after Vuneafi. 



brain shows marked convolutions (Pig. 30). Dujardin states 

 that the brain of the worker-bee is 1-174 of the body ; in the 

 drone it is relatively much smaller ; the ant, 1-286 ; the ich- 



