New York Agricultural Experiment Station. 13 



The foregoing prices placed on the different dairy products do 

 not represent actual prices at tliis writing, but they represent fairly 

 the average prices prevailing during a period of years previous to 

 the present depression, and may be regarded as relatively accurate, 

 whether absolutely so or not. 



^y While the data contained in this bulletin are not intended to give 

 in any respect a comparison of breeds or individuals, we state the 

 names of the individual cows and also, in the first table, the breed 

 to which each belongs, in order that any one interested in indi- 

 vidual differences may make comparisons. 



In the table following, we state under the column headed " Cost 

 of one quart of milk " the food-cost of one quart of milk, giving the 

 figures in order, commencing with the lowest. In the other 

 columns, we indicate by figures in parentheses the order of each 

 individual in different periods of lactation. There are 44 lactation 

 periods included and so the numbers run from 1 to 44 inclusive. 

 To illustrate the meaning of the arrangement of this table. Beauty 

 Pledge, Holstein-Friesian, in her second period of lactation, pro- 

 duced a quart of milk at less cost than any other animal in any 

 period of lactation and hence she ranks in this column first (1). 

 Under the column headed "Cost of one pound of butter," this same 

 animal ranked ninth (9) ; that is, in eight periods of lactation of 

 other cows, butter was produced at less cost. In cost of cream pro- 

 duction, she ranked sixth (6) ; and in cost of cheese production, 

 ninth (9). 



For the detailed data entering into the calculation of the results 

 embodied in all the tables contained in this bulletin, the reader is 

 referred to Bulletins 77, 78 and 79. 



