20 Experiments upon Swedes. 



cient dressing for roots on rich, light land, and consequently that 

 it is a waste of money to apply such dressings as 8 or 10 cwts. 



4. That cheap manures, costing, it may be, only Is. per ton, 

 in reality are generally more expensive turnip-manures than ferti- 

 lizers which, like Peruvian guano, cost 13/. a ton, or superphos- 

 phate, costing from 6/. to 87. a ton. 



Agricultural College, Cirencester, 

 June Wth, 1861. 



London ; Printed by W. CLOWES and SOKP, Stamford Strceet, and Charing Cross. 



