5 6 
Fig. 25. — Diagram to show formation of polar bodies in egg: 1, early germ- 
cell, o6gonium, wilh whole number of chromosomes — paternal, black dots ; 
maternal, clear rings; 2, division of odgonial cell; 3, first polar spindle ; 4, first 
polar body; 5, second polar spindle and division of second polar body; 6, egg . 
after extension of polar bodies. 
399 
