230 Journal of Agricultural Research voi. xviii, no. 4 



minor importance compared with sufficient stirring of the air within the 

 room to enable the apples to throw off their waste gases. 



STORAGE PACKAGES 



In a question where the aeration of the fruit is involved, the nature 

 of the package naturally plays an important part. In an earlier paper (5) 

 preliminary experiments were reported covering a number of different 

 temperatures and a great many different varieties of apples and showing 

 that scald could always be produced by storing the apples in moist cham- 

 bers and could always be prevented by storing them in open containers. 

 Preliminary experiments were also reported showing that scald could 

 be reduced in commercial storage by the use of ventilated barrels. The 

 results reported in the following paragraph give confirmatory evidence 

 of the importance of open packages in commercial storage. 



The data reported in Table XIII were obtained in Wenatchee, Wash. 

 The Grimes apples were picked September 18, were held in a laboratory 

 until October 4, and were then placed in cellar storage. The lard cans 

 remained closed until the apples were removed from storage. The final 

 notes were taken February 14. The Rome Beauty apples were picked 

 October 3, were held in cellar storage till November 2, and were then 

 placed in cold storage. The lard cans remained closed till the apples were 

 removed from storage. The final notes were taken February 14. The 

 Stayman Winesap apples were picked October 12, were held in a cool, well- 

 ventilated place till October 19, and then the lard cans were opened and 

 all of the apples transferred to cold storage. The final notes were taken 

 March 25. All lots were held in the open in a warm laboratory for 

 three or more days before the final notes were taken. The following 

 results were obtained on unwrapped apples, but similar contrasts were 

 also obtained on wrapped apples. 



Table XIII. — Closed packages in storage 



Variety. 



Grimes. 

 Rome Beauty 



Percentage of scald. 



In lard 

 cans. 



In com- 

 mercial, 

 boxes. 



42 

 68 



Stayman Winesap 34 



24 

 25 



The results show that the tight package greatly increased the amount 

 of scald. 



The experiments reported in Table XIV were made in Winchester, Va., 

 and Washington, D. C. The Grimes at Winchester were picked Septem- 

 ber II, the Stayman Winesap September 25, the green York Imperial 

 October i, and the ripe York Imperial October 29. The Grimes at 



