ii 4 THE EMBRYOLOGY OF THE HONEY BEE 





Mel Nv 



Con 



FIG. 37. Sections illustrating the structure of the ventral cord of a 

 newly hatched larva (Stage XV), x 900. A, transverse section through the 

 second thoracic ganglion, showing the lateral nerves (Nv}, neurilemma 

 (Nlm), commissure (Com}, and neuroblasts (A^/). B, transverse section 

 through the connectives between the second and third thoracic ganglia, 

 showing nerve fibres (NvF} and neurilemma (Nlm). C, sagittal section 

 of the third thoracic ganglion. D, coronal (horizontal) section through 

 the third thoracic ganglion. 



