Nbl 



FIG. 48. Transverse sections through the ventral ectoderm of embryos 

 of the honey bee, showing segregation of the neuroblasts (N.bl) and the 

 dermato'blasts (Dbl), and the formation of the ganglion cells (GngC) 

 by the granddaughter cells of the neuro'blasts. A, thoracic region, Stage 

 VII ; B, middle of second thoracic segment, Stage VIII ; iC, anterior half 

 of second thoracic segment, Stage VIII; D, second thoracic segment, Stage 

 IX. 



