36 



E. J. LTJND 



Fig. 8 Curves plotted from percentages in table 7, Experiment VIII, showing 

 the effect of mass or volume of fresh yolk eaten, upon the extrusion reaction. 

 Curves A, B and C are plotted from Sets A, B and C, respectively. The points 

 on the ordinates represent the percentage of total number of grains fed, which 

 still remained in the vacuoles at the time indicated by the same points on the 

 abscissa. 



