EXAMINATIONS OF APPLE STARCH. 99 
winter varieties. Hence, although a longer time is necessary to com- 
plete the work, for the purpose of studying the chemical changes 
occurring in apples it would seem that the winter varieties are to be 
preferred. It must be borne in mind, however, that much of the 
ripening in these varieties occurs after they are picked, while the sum- 
mer varieties are more nearly ripened before picking time. 
It is also demonstrated that although there is a general similarity 
between different varieties in their ripening, there are also well-defined 
differences. 
