COMPOSITION OF FRUIT TREES 73 



Olive {Olea europcea, Natural Order, Oleacese) 

 is a talf-hardy greenhouse flowering shrub, with 

 evergreen leaves. It has been cultivated from 

 remote periods in southern Europe, for the sake 

 of the valuable oil expressed from the pulp of its 

 fruit. 



When grown outdoors in the South of England 

 only, the olive prefers a sandy loam, in a sheltered 

 sunny position or against a south or west wall. 

 For pot-culture in greenhouses, the olive grows 

 in a compost of loam, leaf -mould, and silver sand. 



The ashes of the wood contain in 100 parts : — 



Iron oxide 



Manganese dioxide 



Alumina 



Lime 



Magnesia 



Potash . 



Soda 



Phosphoric acid . 



Sulphuric acid 



SUica 



Chlorine 



4 00 



0-36 



0-33 



22-68 



12-55 



17-48 



8-63 



6-99 



3-00 



22-93 



1-05 



One ton of Olea extracts 23 lbs. of mineral 

 matter from the soil. 



Orange. — (Citrus aurantium, Natural Order, 

 Rutacese) is a greenhouse evergreen shrub. It 

 grows in a compost of turfy loam, dry cowdung, 

 charcoal and sand. 



