SUGAR IN APPLES. 



365 



The results obtained in the analysis of the apple are as 



follows : — 



I. — Apple (Baldwin). 



These three samples were taken from the tree on the day 

 stated, and tested without delay. 



* 



Rhode- Island Greening. 



The first two samples were tested directly after they were 

 taken from the tree. The third, which resembled closely the 

 second, when taken from the tree (Oct. 9), was wrapped in 

 a paper, and kept in a close box : it was tested Nov. 27, 

 or about seven weeks after being taken from the tree. A 

 glance at the above results reveals the fact at once, that the 

 Greening taken from the tree suffered similar changes in 

 its composition as the Baldwin left on the tree. 



In the ripening of the grape, it was noticed that there was 

 no gain in the per cent of sugar after its removal from the 

 vine, except by the evaporation of moisture ; while in the 

 apple and pear a very marked increase takes place. This 

 would seem to indicate that the starch, which is always pres- 

 ent in both fruits (the apple and pear), was converted into 

 sugar. 



