94 EXCREMENTS AND URINE. 



the operation is regulated entirely by the quantity of 

 azotized substances and alkalies they contain. Ar- 

 ranged according to their excellence, as means of 

 manure, they succed each other as follows : sheep, 

 horses, cows, and swine. 



The value in money which pertains, in conformity 

 with their constituents, to these different kinds of 

 excrements and urine, has been already stated. The 

 following calculation may also show approximately 

 the value of all the excrements which these four 

 different animals furnish in a year. 



Manure. Value in Money. 



One cow furnished yearly : ibs. £ s. d. 



In excrements, . . 20,000 4 10 

 In urine, .... 8,000 410 



Total, 

 One horse furnished yearly : 

 In excrements, 

 In urine. 



Total, 



One sheep furnished yearly : 

 In excrements, . 

 In urine, 



Total, . 

 One hog furnished yearly : 

 In excrements, . 

 In urine. 



Total, . . * . 3,000 1 1 4i 



