EXPLANATION OF PLATS III 



No. 1. Apples showing thrse sizes of spots - 

 natural size. Upper right hand apple marked both 

 around darkened part and around reddened part. 

 There was no progress of the spot beyound these 

 lines in four months. 



No. II. Left hand apple showing irregular 

 shaped spot. Right hand one showing depression 

 around edge of spot. 



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