82 THB beb-keepbr's guide; 



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

 ing-around the oesophag'us, enlarges to form the largest of the 

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



Mervous iSystem of Drone, after Diincni. 



brain shows marked convolutions (Fig. 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- 



