166 



EXPERIMENTAL FARMS. 



This table presents the composition of the leaves, together with such other inform- 

 ation as may help to elucidate the question under consideration. After the columns 

 containing the names of the varieties and the data when the leaves were gathered, are 

 three columns in which is given the percentage composition of the leaf — the water, organic 

 matter and mineral constituents. Then follow six columns, containing the percentages of 

 the chief inorganic components of the ash. The percentages of nitrogen in the dry 

 organic matter are then given, followed by columns depicting the amounts of nitrogen, 

 phosphoric acid and potash contained in 1000 lbs. of the green leaf. These figures serve 

 to show the absolute and relative values of the leaves as a fertilizer, as well as the 

 quantities of these materials taken from the soil for the growth of the leaves. 



COMPOSITION OF THE FRUIT. 



The general composition, viz., the percentages of water, organic matter and ash 

 (which make up the whole), and the amount of nitrogen, are given for the four varieties 

 examined in the following tabulated form : — 



Analysis of Apples. 



Name of Variety of Apple. 



Duchess of Oldenburg 



Wealthy 



Fameuse 



Northern Spy 



Average 



Water. 



88-61 

 87-00 

 85 22 

 87-08 



86 98 



Organic 

 Matter. 



11 14 



12 71 

 14-46 

 12 65 



12 74 



Ash. 



•25 

 ■29 

 ■32 

 ■27 



•28 



Nitrogen. 



•0382 

 •0375 

 •0512 

 •0445 



•0428 



Although there is a great similarity in composition in the varieties examined, and 

 none differ much from the average deduced from them all, it is of interest to note that 

 the Fameuse is the richest in organic matter, in ash constituents and in nitrogen. The 

 Wealthy and Northern Spy contain almost identical amounts of organic matter and ash, 

 and the Duchess of Oldenburg has the largest percentage of water and lowest percent- 

 age of organic matter and ash. 



Percentages of Important Constituents in Ash. 



Name of Variety of Apple. 



Duchess of Oldenburg 



Wealthy 



Fameuse 



Northern Spy 



Average 



Silica. 



•36 

 •63 

 •32 



111 



•60 



In this table the composition of the ash in detail is given. Of its components, 

 phosphoric acid and potash are the principal. The latter constitutes over half of the 

 ash (55-26 per cent), while the former is about 9 per cent, the average being 8*98 per 

 cent. 



