50 



STUDIES ON APPLES. 



this it doubtless happened that in some cases a larger percentage 

 of relatively green apples was obtained than in others. In addition to 

 this, the chemical composition of the apples changes very rapidly 

 after they are picked from the trees. This is a matter which was not 

 well understood at the beginning of the work and. the error caused 



JULY 1903 



I AUG. 



50 



40 



Refrigerated subsamples 



F I0 . iti. Chart showing average chemical changes during growth in the three summer varieties 



(total sol ids basis). 



thereby was not guarded against as fully as it might have been. 

 Owing to the fact that the apples were grown in West Virginia, from 

 twenty-four to thirty-six hours elapsed from the time they were picked 

 until analysis was begun in the laboratory. It was supposed that this 

 lapse of time would not cause great changes in the composition of the 



