divided, and the other four small globules remain unchanged. 

 Before the division itself the nucleus of the ventral (large) 

 yolk globules become invisible, although on crushing out of 

 the ova, it is seen that they elongate, i.e. they are present 

 in a condition of division, while the nuclei or the dorsal 

 (small) globules are not divided and remain round (Figure 39, 

 43) . The dividing yolk globules are stretched and twisted 

 in the diagonal direction (Figure 39, 45). The newly arising 

 yolk globules (again smaller in size than those which gave 

 them the origin) are generally situated by the general rule, 

 in the spaces between the large vegetative globules. The 

 twelve globules of division present in the fifth stage are 

 situated in three rows. The ventral row consists of four 

 globules of the third stage, in the dorsal side four yolk 

 globules of the fourth stage are present, and between the 

 ventral and dorsal globules four newly arising yolk globules 

 of the fifth stage are situated. The globules of the upper 

 and lower rows stand against each other, and in the spaces 

 between the globules of these rows the globules of the middle 

 row are present. Concerning the origin of globules of the 

 fifth stage from the globules of the third stage it is 

 judged by the neighboring situation of their nuclei (Figure 39, 

 46a). In the second half of the fifth stage, as in the previous 

 one, the smoothing of the surface of all globules of division 

 and their nuclei becomes more distinct. Between the yolk 

 globules a vesicular light space appears. 



THE SIXTH STAGE. At the beginning of this stage four 

 yolk globules of the fourth stage become more convex and 

 the globules of the sixth stage separate from them. The 

 yolk globules of the fifth stage remain the spaces between 

 the globules of the third stage (Figure 39, 47). The total 

 number of globules of division in this stage is sixteen. 



THE SEVENTH STAGE is characterized by the three 

 divisions of the globules of the third stage, giving rise to 

 the four yolk globules of the seventh stage. The total number 

 of globules of division is twenty. 



THE EIGHTH STAGE. In this stage the four globules of 

 the eighth stage are separated from the yolk globules of the 



554 



