io8 MANURES FOR FRUIT TREES 



Dr. E. Wolff, in his " Aschen Analysen," gives 

 the following percentage composition of the ashes 

 of Erica ciliaris : — 



Iron oxide 4'00 



Lime 16-23 



Magnesia 8-93 



Potash 7-61 



Soda 9-40 



Phosphoric acid . . . 4'19 



Sulphuric acid . II'IO 



Chlorine 2-12 



Silica 35-22 



One ton of Erica extracts 2 3 "5 lbs. of mineral 

 matter from the soil. 



Heliotropium {Heliotropium peruvianum, 

 Natural Order, Boraginacese) is a greenhouse 

 flowering shrub, and flourishes in a compost of 

 equal parts of loam, leaf-mould, and silver sand. 



The ashes of the entire plant contain in 100 

 parts : — 



