SULPHATE OF AMMONIA 



ITS 



Characteristics and Practical Value 



AS 



A MANURE 



BY 



R. WARINGTON, M.A., F.R.S. 



\l 



Formerly Sibthorpian Professor of Rural Economy in the 



University of Oxford. 



BMibli6beD bg tbe 

 SULPHATE OF AMMONIA COMMITTEE, 



4, FEXCHURCH AVENUE, LONDON, E.G. 



1900. 



