OR, MANUAI< OF THE APIARY. 



81 



The nerves of insects are in no wise peculiar, so far as 

 known, except in position. Each nerve consists of a bundle of 

 fibers, some of which are sensitive, and some motor. As in 



Fig. 27. 



Diagram shomng Internal Organs of Bee, (modified) , from Cowan. 



WKesbd. J3 Supra oesophagear ganglia. Tis Honey-stomach. 



T Thorax. gg Ganglia on nerve cord. s Stomach. 



A Abdomen. as Air sacs. m Stomach-mouth. 



6 Brain. tt Tracheae. i Ileum. 



Jt Rectum. mt Malpighian tubules. r,g Rectal glands. 



our bodies, some are knotted, or have gang-lia, and some are not. 

 The main nervous cord is double, and has several enlarge- 

 ments (Fig. 27, 28) or g-anglia. It runs along the under or ven- 



