CONTENTS. 



I. Storage, respiration, and growth 9 



Review of work on the ripening and respiration of fruits 9 



The ripening of apples in common storage 20 



Description of the varieties analyzed 20 



Description and analyses of samples 21 



Discussion of analytical data 24 



The ripening of apples in cold storage. ,. 31 



Results of analyses 32 



Results with samples taken out of cold storage 35 



The respiration of apples in common and cold storage 40 



Description of apparatus and methods employed 40 



Results of respiration experiments 42 



The growth of apples 44 



Results of consecutive analyses of growing apples 45 



Discussion of changes occurring during grow r th 46 



Methods of analysis 65 



II. Insoluble carbohydrates or marc 67 



Pectin bodies 67 



Historical review , 67 



Comments on the problems involved 86 



Analyses of apple inarc - 87 



Preparation of sample 87 



Results of analysis 88 



III. Microscopic and macroscopic examinations of apple starch 89 



Microscopic studies 89 



Size of starch grains '. 89 



Weakening of cell walls and increase of intercellular air 92 



Macroscopic studies 94 



Terminology 94 



Changes in starch content 95 



Conclusions 98 



Description of plates 100 



5 



