PLATE 3 



EXPLANATION OP FIGURES 



Aglantha digitalis 



In all figures the chromosomes are represented as they appeared in the sec- 

 tions, all chromosomes were either present in a single section or if in two sec- 

 tions no single chromosome extended over more than one section. Figures 'a' 

 and 'b' in each case represent the chromosomes of the same spindle which ap- 

 peared in adjacent sections. 



19 to 24 Side views of first maturation spindles in different phases. 19, 20, 

 24 X 1275; 21 to 23 X 1585. 



25 to 27 Equatori-al plates of first maturation mitoses. X 1275. 



28 Telophase of first maturation, side view of egg chromosomes grouped in 

 vacuoles at pole of spindle. X 1275. 



29 Telophase of first maturation, polar view of egg chromosomes at end of 

 spindle; the chromosomes are splitting in preparation for the next division. 

 X 1585. 



30 to 34 Second maturation mitoses, equatorial plates. All X 1275 except 

 figure 32 which is X 2000. 



35 Telophase of second maturation mitosis, showing the group of chromo- 

 somes left in the egg. X 1275. 



G34 



