i8 



DATA FROM OTHER SOURCES. 



I. The Connecticut (Storrs) Experiment Station in Bulletin 73 

 gives complete data for five years, 1907-1911, of which the following 

 is a summary : 



The herd was composed of Jerseys, Guernseys, Holsteins and 

 Ayrshires. Accurate accounts were kept not only of the cost of feed 

 but also of labor and other items of expense. The average for five 

 years for 124 cows showed that the average cow produced 6379 

 pounds (2835 quarts) of 4.34 percent milk at a cost of 4.78 cents per 

 quart at the barn. 



2. The New Jersey Stationf gives a careful account of the cost of 

 the milk produced by its herd of 31 selected grade Holstein, Jersey, 

 Ayrshire and Guernsey cows for the year 1909, of which the following 

 is an abstract : 



*Less ;f 15.00 for value of manure and calf. 



**Total number of cows. 



tThirty-first report, pp. 64-67. 



' FigurinjT roughage at actual cost of production and grain at market prices. 



2 Value of manure and calf not deducted. 



3 Figuring roughage at market rates. 



