384 FUNDAMENTALS OF AGRICULTURE. 



young children, the purity of the milk supply should 

 be safeguarded by all means known to modern dairy 

 science. Milk has at times been the means of spread- 

 ing contagious diseases, like scarlet fever, typhoid 

 fever, etc. The greatest stress must, therefore, be laid 

 on the importance of cleanliness in the barn and the 

 dairy, as well as in the handling of the milk in the 

 household. 



Dairying is a special branch of agriculture, which 

 makes great demands on those that follow it, with re- 

 gard to industry, order, care and cleanliness; on the 

 other hand, when conducted right, it is more remu- 

 nerative than most other branches of farming; dairy 

 farmers are able to maintain and even increase the fer- 

 tility of their farms by purchasing commercial feeding 

 stuffs for their cows and taking good care of the stable 

 manure produced on the farm. Dairying is, there- 

 fore, not an exhaustive system of farming, like the 

 production of field crops, truck gardening, etc. 



EXERCISE. Have you ever seen a Babcock test worked? If so, be 

 prepared to describe it to the rest of the class. When engaged in 

 butter-making, which is the more economical to keep, a cow giving 

 6,000 pounds of milk a year testing 5 per cent, butter fat, or one 

 giving 7,000 pounds of milk testing 3.5 per cent, butter fat? Having 

 two cows, one producing 25 pounds of milk per day and the other 

 producing 16 pounds of milk per day, and both cows receiving the 

 same amount of feed, what would be the saving per day and per 

 month, when milk is selling at 30 cents a gallon (weight 8.6 pounds) 

 retail, by feeding according to milk production? t -.. 



REFERENCES FOR COLLATERAL READING. 



LIVE-STOCK AND DAIRYING. 

 HORSES : 



Bureau of Animal Industry, Circular Nos. : 

 37 Market classes of horses. 



137 The preservation of our native types of horses. 

 Experiment Station Bulletin, No. : 



122 Illinois Market classes and grades of horses and , 



mules. 

 CATTLE : 



Yearbook of the U. S. Dept. of Agriculture : 



1908 Some facts about tuberculous cattle. 

 Farmers' Bulletins. Nos. : 

 55 The dairy herd. 

 71 Essentials of beef production. 



