140 



155. to 30s. or 40s. per acre, and the effect of this 

 single application was felt even after the lapse of 

 twenty years, when the rent was still two or three 

 times the amount paid before its application. 



The practical agriculturist, in choosing between 

 bone-dust and superphosphate of lime, will be 

 guided by the objects he has in view whether, 

 that is, he wishes immediate or prospective results, 

 and intends growing plants that are surface or 

 subsoil feeders. For the action of superphos- 

 phate is immediate (and, as it can be obtained 

 in a coarse powder, it is most advantageous to 

 sow it with the seed), and has the greatest effect 

 upon plants that are surface-feeders, for it 

 never penetrates deep into the soil ; it is special- 

 ly adapted for all cereals and garden vege- 

 tables, 'the effect of it being equal to the best 

 Peruvian guano. Bone-dust, on the contrary, is 

 most effective two or three years after applica- 

 tion, and penetrates far into the subsoil before 

 it is decomposed and retained by the capillary 

 attractive power of the soil ; hence it is best suited 

 for root-crops (such as turnips, &c.), all subsoil 

 feeders, and fruit-trees. 



The expenditure incurred in the purchase of 

 bone-manure will be repaid the farmer many 

 fold in the increased outturn, and its pecuniary 

 advantages will be evident from the undermentioned 

 results of an experiment made and reported to 



