¥ t 



in tv/o if ' 



i . Lane a — j , is shown in Fi . .. III,^ 



clear its sloping outline, and ii-s tv/o excentrical- 



ly placer] high celLs, It has L Lerior eel 



Lext section is clear of the cej a .ast f c . . 



and has proba divisi 



outer cell. 



. 19, PI. I . , sh 

 SIX Lis - $ev«*\ 



- . . II. is a 



slo^c: L ^cts over the 



struct" 

 p.p . . t 



-vis- 

 ion walls. 



The -a o? sixte - . d blastoderm is 



shown in Pi; . 2$, Pi, I. L: a descendant of 



a blastoderm like Fig. 14 on the same plate. ' T o 

 description of it is needed, beyond calling attention to the 

 fact that the five upper cells are cut out by an equatorial 

 furrow. This is seen by referring to Fig. 21, which is a 

 ventral view of t;i ... Las ... ' ere only five of trie 



The 



