12 



accordiug to analyses of our cream, to from 2.8 per cent, to 4.5 per 

 cent, with an average of 3.05 per cent, of the total fertilizing value 

 of the feed. From these figures it will be seen that in selling the 

 cream from the farm much less fertilizing constituents are lost to the 

 farm than in selling the whole milk. A loss of twenty per cent, of 

 the fertilizing constituents contained in the feed has been allowed in 

 our previous publications when selling the whole milk. 



The statement of net cost of feed as compared with that of its 

 total cost refers to the original cost of the feed less the value of fer- 

 tilizing constituents obtainable in the manure. 



7. The net cost of feed consumed per quart of cream, (1 qt.=3.4 

 spaces,) averaged, for the year of 1887, 8 cents, and for the year 

 of 1888, 6.47 cents. As we obtained 12.17 cents per quart of cream 

 during 1887, and 12.65 cents during 1888, we secured a profit above 

 net cost of feed of 4.17 per quart in 1887, and in the year 1888, G.18 

 cents for the same quantity. 



8. We produced during the year 1887, 21,026.1 quarts, and during 

 the year 1888, 19,991.9 quarts of whole milk. 



It requii-ed on an average during 1887 and 1888, 6. 17 qunrts of 

 whole milk to produce one quart of cream. We secured during tlie 

 same period of time 34,359.4 quarts of skim milk, and 6,661.0 quarts 

 of cream. 



9. Counting the whole milk at three cents per quart, the skim milk has 

 cost us on an average during the year 1887, 1.32 cents per quart, and 

 during the year 1888, 1.00 cent per quart. The cost of skim milk 

 varied considerably during different months of the year, mainly on 

 account of the changes in the valuation of cream; during 1887 the 

 cost of skim milk varied from .83 to 1.71 cents per quart, and in 1888 

 from .34 to 1.56 cents per qualt. 



The feeding value of skim milk containing 9.5 per cent, solids, is 

 stated by good authority to stand in the relation of 3.1 to 4 wheu 

 compared in that respect with whole milk. In case an average whole 

 milk is charged at three cents per quart, skim milk would be worth, 

 on the previously stated basis, 2.33 cents. 



The feeding value of our skim milk estimated on the customary 

 basis of 4.33 cents per pound of digestible nitrogenous substances 

 and of fat, and .9 cents for non-nitrogenous substances, would 

 amount per gallon, to 1.91 cents. 



