COMPOSITION OF FRUIT TREES 67 



One ton of Corylus extracts 3 4 '5 lbs. of mineral 

 matter from the soil. 



The nuts yield an abundance of bland oil. The 

 wood of this species of Corylus is very elastic. 



Corylus tubulosa, with red leaves, is cultivated 

 as an ornamental shrub, and is commonly known 

 as the " copper hazel." 



Juglans {Juglans regia, walnut-tree, Natural 

 Order, Juglandacese) is a hardy deciduous nut- 

 bearing and ornamental foliage tree. Its leaves are 

 dark green. It grows well on sandy and calcareous 

 soUs, or on stiflf loams with a gravelly subsoil. 



The ashes of the wood, leaves and nuts contain 

 in 100 parts : — 



One ton of walnuts extracts 38 '1 lbs. of mineral 

 matter from the soil. 



F 2 



