130 



PARTHENOGENESIS 



[CH. 



(3) Maturation with, two polar divisions, giving rise to 

 three polar nuclei and an egg nucleus. 



o 



g ;* 



5 J 



I * 



3 : 



3 K JU > 



<u U ~u ^ 



-3 D 3 co 



3 P3 C g 



C H i "y 



1 



S-s 



bJO 



-O 



&" 2 

 ^ 1 



IH 3 



The maturation of parthenogenetic eggs with two polar 

 divisions appears to be confined to the Insects 1 , and is best 



1 Apart from the male-producing eggs of the Rotifers mentioned in group ( i ) 

 above. 



