MANURE. 131 



company, in Lowell. A single cow, being only an 

 average producer of the article in question, was se- 

 lected from the 50 cows usually kept at the estab- 

 lishment. She was fed as usual, and as the other 

 cows were. The food and water were accurately 

 weighed for seven days. She consumed in this 

 period, 



Water, 612 lbs. 



Potatoes, 87 " 



Hay, 167 " 



Total 866 " food and drink, 



and voided, free from her 



liquid evacutions, 599 lbs. of dung. 



From the facts which have been now stated, it is 

 evident, that one cow prepares, daily, from 24 lbs. 

 of hay. and 12 lbs. of potatoes about one bushel, or 

 85-57 lbs. of clung. This affords only 14 1-2 lbs. 

 of solid manure, composed of hay so acted on by 

 the digestive organs, as to form geine, when united 

 with the ammonia produced by putrefaction. One 

 cow daily forms therefore — 

 12 lbs. geine, 



1-5 " ' say 3 oz. of phosphate of lime, 

 1-10 " say 1 1-2 oz. of plaster of Paris, 

 1-10 « sav 1 1-2 oz. of chalk. 



