1889.] 



PUBLIC DOCUMENT — No. 4. 



465 



The entire experiment was managed, as far as practicable, 

 to serve as a repetition of our seventh feeding experiment. 

 The substitution of the corn and cob meal of our own pro- 

 duction from a superior home-raised corn, for the clear corn 

 meal of our general market, may well be considered of but 

 little consequence. This view is fully supported by a care- 

 ful analysis of both. 



The financial results of the eighth experiment, like those 

 of the seventh, are superior to those obtained in the preced- 

 ing five feeding experiments. This fact becomes still more 

 worthy of notice when considering that the seventh experi- 

 ment was carried on during a warmer period of the year, 

 and thus under more favorable circumstances than the 

 eighth experiment. Our late results seem to confirm 

 the conclusions arrived at in our previous experiments, 

 namely : — 



First. A gradual periodical change, from a rich nitrog- 

 enous diet to that of a wider ratio between the digestible 

 nitrogenous and non-nitrogenous food constituents of the 

 feed, is recommendable in the interest of good economy. 



