COMPOSITION OF VARIOUS TREES 97 



One ton of this shrub removes 21 lbs. of mineral 

 matter from the soil. 



Clematises are magnificent hardy climbers, and 

 considering their beauty, freedom of blooming, and 

 the ease with which they are trained on any kind 

 of wall, porch, verandah, trellis, etc., and in 

 almost any aspect, they should be found in every 

 garden. 



There are thirty-one species and many varieties 

 in cultivation. Clematis indivisa is a beautiful 

 greenhouse species, with dark olive evergreen 

 leaves and white flowers of great fragrance. 

 Clematis purpurea elegans produces beautiful 

 flowers of a purple colour. It flowers from July 

 to October. 



It may be stated, en passant, that Prof. J. R. 

 Green describes a rennet- forming ferment or 

 enzyme, comparable to that of the calf's stomach, 

 in the stem of the Clematis. 



Elder {Samhucus nigra, Natural Order, Capri- 

 foliacese) is a hardy deciduous shrub. It grows in 

 ordinary soils. 



The ashes of the wood contain in 100 parts : — 



Iron oxide 0"36 



Manganese dioxide . . . 0'09 



Alumina 0'25 



Lime 35-96 



H 



