Weight of cows, pounds. , 

 Pood consumed, pounds. 

 Water drunk, pounds. . . . 

 Total excretion, pounds. 



Nitrogen, pounds 



Phosphoric acid, pounds. 



Potash, pounds 



Value of Nitrogen 



Value of phosphoric acid. 



Value of potash 



Total value 



Composition of the mixed excrement: 



Nitrogen 51 per cent. 



Phosphoric acid 35 



Potash 51 



Value per ton $2 . 46 



A few days later a second trial was made with four of the 

 same cows and the solid and liquid excrement carefully 

 collected and analyzed separately. The conditions of food, 

 water, etc., were' almost identical. „. ^^ • , c j t- • ■ 



' ' I'lrst 1 rial, becond 1 rial. 



Average weight 1,132 1,178 



Average food eaten 75 76 



Average water drunk 



Average total excrement voided. 



49 

 81 



40 

 82 



The four animals yielded in twenty-four hours 255 pounds 

 of solid and 72.25 pounds of liquid excrement, which had 

 the following composition: soiid, Liquid, Mixed, 



Per Cent. 



Nitrogen • 26 



Phosphoric acid 28 



Potash 20 



Value per ton ;^2 . 08 



177 



and the manure carefully collected as it was excreted, and a ^o°<^ ^^^ 



sufficient quantity of bedding and absorbents of known com- ^ 



position and weight were used to make the collection complete. 

 The COWS' consumed 114 pounds of hay, 893 pounds of 

 ensilage, 186 pounds of beets, and 154 pounds of a mixture 

 of 12 parts wheat bran, 9 parts cotton-seed meal, 3 parts 

 corn meal, and i part malt sprouts. ' The other details of 

 the experiment are shown in the table: 



