while the fourth and fifth are of thirty-five days each. The lota 

 were alternated from the skim-milk and corn meal ration to the 

 mixed grain ration, and vice versa at the beginning of each pe- 

 riod, thus equalizing any variation in the natural thriftiness of 

 the two lots. 



Table II is arranged as follows : Commencii:ig at the left 

 the first column gives the period and date covered ; the second 

 column gives the number of the week since the experiment com- 

 menced ; the next four columns give the kind and amount of 

 food fed per lot daily ; the gain per week for each lot comes 

 next ; then the gain figured to one hundred pounds of live 

 weight, followed by the same averaged for the entire period ; 

 in the next column is given the cost per pound of growth for 

 each week. In order that this might be figured out it was nec- 

 essary to assume some value for skim-milk, and I have taken this 

 at twenty-five cents per hundred pounds ; following this is the 

 average per period. 



This table contains the more important results of the exper- 

 iment. The most noticeable thing about it is the superiority of 

 the skim-milk and corn meal ration over that made up of corn 

 meal and middlings, notwithstanding the fact, as will be shown 

 later, that the former ration did not contain as much digestible 

 matter as the latter. 



Table III is condensed from Table II for the purpose of 

 showing that this superiority is a decided one, both as to rate of 

 growth and cost of growth, 



TABLE III. 



