CULTIVATION OF THE BEET. 141 



mencing February 7, three of the cows, designated as 

 A, received ea'ch forty pounds of pulp, six pounds 

 barley straw and half an ounce of salt per day for 

 four weeks. During the same time each of the three 

 cows, designated as B, received daily twenty-six and 

 two thirds pounds of pulp and six pounds barley straw ; 

 they also received daily, of salted leaves, in addition, 

 for the first week, thirteen and one half pounds ; for 

 the second week, sixteen and one half pounds ; for 

 the third week, twenty pounds ; and for the fourth 

 week, twenty-six and one half pounds. 



The result was, that the amount of milk given by 

 the cows A fell gradually in the four weeks from an 

 average of 25.78 pounds per day to twenty pounds 

 per day, while the cows B increased their average 

 daily production from 26 T IT to 31-^- pounds. 



During the next four weeks the cows A were fed in 

 the same manner that .he cows B had been, and the 

 cows B were put upon the old diet of the cows A, with 

 this exception, that they received, besides the daily al- 

 lowance of forty pounds of pulp and six pounds of 

 barley straw, an additional daily allowance of pulp 

 to the extent of twenty-six and one half pounds the 

 fifth week, twenty pounds the sixth week, sixteen and 

 one half pounds the seventh, and thirteen and one 

 half pounds the eighth week. 



The result was, that the cows A, now fed on the 

 leaves, gradually increased their average flow of milk, 

 until, at the end of the second period of four weeks, 

 the yield had risen from 20 to Ztyffo pounds, or con- 

 siderably more than that at the beginning of the ex- 

 periment eight weeks before, while the daily yield of 



