THE EMBRYOLOGY OF THE HONEY BEE 57 



^AiAvHr 8 ^ 



>C:'>'Y/W: ; V : l5 



A 



AMR 



Am 



B 



AMR 



FIG. 24. Transverse sections through the anterior ends of two eggs of 

 Stage IV, intersecting the anterior mesenteron rudiment (AMR}, illus- 

 trating the movement of the lateral blastoderm toward the mid-line during 

 the growth of this rudiment. The development of the amnion in this 

 region is also shown. In A the anterior mesenteron rudiment is barely 

 visible, in B, a slightly older stage, it forms an evident swelling, x 243. 



