ILLINOIS DAIRYMEN'S ASSOCIATION. 255 



talking dairy cows particularly, this afternoon, and their con- 

 formation. So far no one has ever demonstrated that it is 

 profitable to breed a dual purpose beast, and it is left to the Red 

 Poll men to solve this question for us. But here is a very nice 

 looking animal, and I should expect she would give very good 

 returns for the feed consumed. 



Now, we are going to test the milk, and we will have to 

 change the subject a little, to the Babcock test. We take 17-6 

 cubic centimeters of milk, and put it in this little bottle, which 

 has a graduated neck. This neck is divided into ten parts and 

 each one of those parts into five spaces. If we have a column of 

 fat running from the zero to 10, you will have a cow that is pro- 

 ducing ten pounds of butter fat in every 100 pounds of milk. 

 If it runs from to 5, she tests five per cent, we say, or five 

 pounds of butter fat in every 100 pounds of milk. If it runs 

 from to 3.2, it means that there is 3.2 pounds of butter fat in 

 every 100 pounds of milk. 



In sampling this milk, I must be careful to take it from a 

 portion that has been thoroughly mixed, and then measure it 

 exactly. It will be about ten minutes before we will be able to 

 give you the results of this test. 



I do not wish to take issue with anything that Prof. 



said in regard to our children as being more important than 

 cows, however, I do not want my friends to forget that the cow, 

 in these days, is the foster mother to thousands of babies in this 

 country. The cow is a noble mother. (Laughter and applause.) 



We will test this cow's milk. I have in my left hand 

 sulphuric acid, composed of two parts hydrogen, one part sulphur, 

 and four parts oxygen. It makes an acid that we call sometimes 

 the king of acids. If you put a drop upon your clothing, it 

 would eat it up immediately, and you would be verv likely to feel 

 its effect upon the skin and flesh beneath. We take 17.5 cubic 

 centimeters of the acid and pour it into the test bottle and mix 

 the acid and the milk. Note that I turn the bottle as I pour the 

 acid in; that is to rinse the milk all down from the neck of the 

 bottle, to make the test accurate. The sulphuric acid dissolves 



