CONTENTS 



Page. 



Introduction 9 



Influence of cold storage on the apple industry 9 



The extent of the cold-storage warehousing industry 10 



The function of the cold-storage warehouse 12 



Principles of mechanical refrigeration 13 



The utilization of the cold temperatures 14 



The direct-expansion system 14 



The brine-circulating system 14 



The air-circulating system 15 



Outline of experiments in apple storage 15 



Factors influencing the keeping quality of apples 16 



The maturity of the fruit when picked 16 



How to obtain more uniform and better colored fruit 18 



Influence of delaying the storage of the fruit 19 



Influence of storage temperature 21 



Influence of a fruit wrapper 22 



Influence of cultural conditions 23 



Influence of the type of package 24 



The behavior of the fruit when removed from storage 25 



The importance of good fruit 26 



Apple scald 26 



Nature of the scald 27 



Influence of maturity of the fruit on scald 27 



Influence of temperature on scald ... 29 



The temperature in which the fruit is removed from the storage-house. . . 29 



Influence on scald of delaying the storage of the fruit after it is picked ... 30 



Influence of a fruit wrapper on scald - 31 



Varieties most susceptible to scald 31 



Treatment to prevent scald 32 



Comparison of varieties in cold storage 33 



Outline of cultural conditions 34 



Variety catalogue 36 



Summary 63 



Description of plates : 66 



7 



