Dr. Fickendey 



69 



is generally to be met with in fruits containing 

 tannic substances, as, for instance, in apples, 

 in which the colour or discolouration that results 



DR. FICKENDEY, AGRICULTURAL DEPARTMENT. 

 CAMEROONS, GERMAN WEST AFRICA. 



from being cut is caused by the oxidation of 

 the tannic substances in the fruit. The query 

 as to whether a kind of leathery formation 



