1004 



THE COMPLETE GRAZIER. 



BOOK XI. 



FARM-YARD MANURE. The late Dr. Voelcker, Consulting Chemist to 

 the Royal Agricultural Society of England, devoted much time to the 

 investigation of the subject of farm-yard manure, or dung, as it is more 

 generally designated. The following are his analyses of it, in its fresh 

 and in its rotten state : 



IN ITS FRESH STATE (14 DAYS OLD). 



Water 



Soluble organic matter 1 . 



Soluble inorganic matter (ash) : 

 Soluble silica ..... 

 Phosphate of lime .... 



Lime 



Magnesia 



Potash 



Soda 



Chloride of sodium .... 

 Sulphuric acid .... 

 Carbonic acid and loss 

 Insoluble organic matter 2 



Insoluble inorganic matter (ash) : 

 Soluble silica ..... 

 Insoluble silica .... 

 Oxide of iron, alumina, with phosphates 



Containing phosphoric acid 



Equal to bone earth 

 Lime ...... 



Magnesia 



Potash 



Soda 



Sulphuric acid .... 

 Carbonic acid and loss 



Containing nitrogen 

 Equal to ammonia 



Containing nitrogen 

 Equal to ammonia 



Whole manure contains : 

 Ammonia in free state 



form of salts . 



66-17 

 2-48 



237 

 299 

 066 

 Oil 

 573 

 051 

 030 

 055 

 218 



967 



561 



596 



(178) 



(-386) 



1-120 



143 



099 



01 



061 



484 



1-54 



25-76 



4-05 



100-00 



149 

 181 



494 

 599 



034 



In publishing these analyses, Dr. Voelcker thus explained some of 

 the leading features of dung as a manure : " Chemically, it must be 



