COMPOSITION OF VARIOUS TREES 129 



wood of wMcli was used in ancient times as 

 incense. The oldest cedar in England is at 

 Brethby Park, DerbysMre, and was planted in 

 1676. Cedrus does not produce cones until the 

 tree is from 40 to 100 years old. The tree prefers 

 a rich, deep sandy soil. 



The ashes of Cedrus contain in 100 parts : — 



One ton of Cedrus extracts 26 lbs. of mineral 

 matter from the soil. 



The seed of the cedars takes two years to ripen. 

 Cedar wood is used for pencils, cigar boxes, 

 boat-building, cabinet-making, etc. Cedar wood is 

 peculiarly adapted for the packing of cigars, as it 

 preserves their flavour without imparting to them 

 any of its own. 



Ledum {Ledum palustre, Natural Order, 

 Ericaceae) is a hardy flowering shrub. It prefers 

 a soil of peat, mould, and sand. 



K 



