ii8 THE EMBRYOLOGY OF THE HONEY BEE 



..-- |Br 3 



PhyGng 



FIG. 39. Cephalic portion of the nervous system of a newly hatched larva 

 (Stage XV), lateral aspect, drawn with the camera lucida from an entire 

 preparation, and corrected with the aid of sections, x 243. 



the anteriormost (Fig 38), but in the bee the posteriormost, is the 

 broadest of the three, and subspherical in form. Its posterior 

 half, separated from the rest of the brain by a groove, is com- 



AntR 



FIG. 40. Transverse section through the head of a newly hatched embryo 

 (Stage XV), passing just in front of the mouth, showing part of the 

 protocerebrum (iBr) and the frontal ganglion (FtGng), x 337. 



