PLATE 3 



EXPLANATION OF FIGURES 



11 An ovarian egg (Group VI) showing the first polar body with a spindle, 

 and the early type of short, thick second polar spindle within the egg. The 

 protoplasmic bridges have at this stage disappeared. 



12 A tube egg, showing the first polar body at the right, and the long slender 

 type of second polar spindle at the lower left-hand margin of the egg. 



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