us data for determining the relative economy of the Sanford 

 and Southern varieties of corn. The first period is the closing 

 part of nearly a month of almost identical feeding, during which 

 the individual record was kept, but as the complete record of 

 total milk was not made the experiment is considered to have 

 commenced at the date indicated in Table A, and although the 

 figures for, the Sanford feeding appear for a short period they 

 are really the last seven of. a twenty-one days period, during 

 which time the averages were very close to those given. 



TABLE B. 



Period (7 days each), 12345 6 



lbs lbs lbs lbs lbs lbs 



Milk produced, 1604.4. i434- i439- 1484. 1512.8 1620. 



Cost of food, ^15.06 ^15.06 $19.95 $22.61 $23.00 $21.28 



cts. cts. cts. cts. cts. cts. 



Cost per qt. of milk, 2.02 2.27 2.98 3.27 3.25 2.83 



Table B is intended to show the actual amount of milk 

 produced by the herd for each period, also the value of the food 

 consumed in producing the same and the cost of food per quart 

 of milk. 



This table shows that on account of the change from San- 

 ford to Southern ensilage it became necessary to increase the 

 grain ration from ij^ lbs. of mixed grain, to six pounds of mix- 

 ed grain and buckwheat before the yield was restored to its for- 

 mer amount, and in so doing the cost of a quart of milk was in- 

 creased from 2.02 cents to 33^ cents. Or if we take the cost of 

 the milk required to make a pound of butter it is increased 

 from 23.7 cents to 30 cents, an increase of 26}^%. 



During the sixth period the grain was changed, reducing 

 the cost of the daily ration i ys cents, but in no way decreasing 

 its efficiency. The result of this change was to produce milk 

 at 2.83 cents per quart, and butter at 26.9 cents, a cost still 

 ^3/^% above the cost while the Sanford corn ensilage was 

 being fed. These figures show a most decided difference in fa- 

 vor of an ensilage produced from mature corn with a good pro- 

 portion of ears that were well past the boiling stage, or as is 

 commonly said "past the milk." 



The next feeding was with Northern corn ensilage, stored 

 whole. Unfortunately an important step in the investigation 



10 



