THE EMBRYOLOGY OF THE HONEY BEE 











D 



FIG. 25. Transverse sections through the anterior mesenteron rudiments 

 of four eggs, showing four stages in the development of the rudiment. 

 A is from an egg of Stage IV, B and C are from eggs of Stage IV- V, 

 C is from an egg of Stage V-VI, x 290. 



prismatic in form, are now seen to be broader, more irregular in 

 form, and loosely arranged. Comparison of sections of a series 

 through the anterior end of an egg at this stage shows that the 

 area involved in the production of the anterior mesenteron rudi- 

 ment has the form of a narrow triangle lying in the mid-line; 



