STORAGE, RESPIRATION, AND GROWTH. 



49 



In .figure 16 the average composition of the three varieties of sum- 

 mer apples during growth is shown graphically in the form of com- 

 posite curves. In this it is seen that the conclusions already drawn 

 from the Early Strawberry apple were true of each of the varieties. 

 The curves representing the content of each of the substances deter- 



60 



50 



40 



II 



40 



I AUGUST 



Refrigerated subsamples 



FK;. 15. Chart showing chemical changes in summer apples (Yellow Transparent) during growth 



(total solids basis). 



mined from time to time in the summer apples are very irregular. 

 This is apparently due to the fact that summer apples usually do not 

 ripen with the uniformity of later varieties. An effort was made at 

 the beginning to secure apples of uniform ripeness, but in spite of 



27981 Bui. 9405 -4 



