FARM MANURES 



365 



It represents, in part, the food materials that have 

 passed undigested through the alimentary canal, and 

 also the secretions this has received on the way, and 

 these substances are not all held in a soluble form, as 

 are those in the urine. 



Stoeckhardt states the composition of the solid 

 excreta of different farm animals to be as follows: 



Table LI 



Horses (winter food) 



Cows (winter food) 



Swine (winter food) 



Sheep (two pounds hay per day) 



Water 



Per cent 

 76 

 84 

 80 



58 



Composition of dry matter 



Nitro- 

 gen 



Per cent 

 2.08 



1.87 

 3.00 



1.78 



Phos- 

 phoric 

 acid 



Per cent 

 1.45 

 1.56 

 2.25 

 1.42 



Alkalies 



Per cent 

 1.25 

 0.62 

 2.50 

 0.71 



Calculated to 1,000 pounds of solid excrement, these 

 figures show the following number of pounds of each 

 constituent. 



Table LII 



The smaller percentage of water in the sheep excre- 

 ment makes it, pound for pound, the richest of any. Next 



