130 



THE AMERICAN ARBACIA 



TABLE 9 



SIZE OF THE ARBACIA EGG AND ITS FRACTIONS IN MICRA WITH IO,000 X G 



E. B. Harvey, 1936 



apparently normal eggs which break differently. Sometimes the white 

 half is much larger than normal and the red half correspondingly very 

 small; rarely the white half is smaller than normal and the red half 

 correspondingly large. Usually the entire batch breaks in the same way, 

 but occasionally the eggs in one batch will break in the three different 

 ways, without intermediates (E. B, Harvey, 1936, photos 7-9). 



