AGRICULTURAL TEXT-BOOK. 



289 



Besides the above, apples contain a little tannic and gallic acids, es 

 pecially the Russets. The Tolman Sweeting showed a trace of starch. 

 A small quantity of white wax, and a respectable percentage of gluten 

 also exist. These analyses were made in the month of March. 



639. Comparison of the apple (A) with the ripe peach (B,) 

 pear (C,) cherry (D,) and potato (E.J 



Chlorophyl, etc., 

 Sugar, 



Dextrine, 

 Fibre, 

 Albumen, 

 Malic acid, 

 Citric acid, 

 Lime, 

 Water, 



Gluten, fat, etc., 

 Casein, 

 Starch, 



4.19 



82.66 



0.2 



0.16 



trace 



74.87 



0.03 



86.28 



0.01 



74.85 



E. 



0.25 



5.8 



trace. 



79.7 

 0.3 



9.7 



The apple, if of good quality, may be regarded equally, if not more 

 rich in fat-producing products than the potato. The apple is also 

 richer in nitrogenous, or flesh-forming, products; and its inorganic con 

 stituents are peculiarly valuable. (Salisbury, in Trans, of N. Y. Soc y, 

 vol. he. pp. 737743.) 



640. Inorganic analysis of a Sweet Apple Tree ; 19 years 

 old. (Emmons.) 



19 



