134 ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 



A. I guess, Mr. Newman, that is so so far as the milk having any odor 

 Is concerned. I speak of something that is entirely different — bacteria. 

 What I am speaking of is when it was sour, and that is caused by bacte- 

 ria. Air will have nothing to do on bacteria. 



Mr. Newman: I don't know enough about science to know about that. 



Prof. Plumb: In Terra Haute, Indiana, is one of the most modern 

 types of a dairy in the United States, where the owner had in mind the 

 production of perfectly good milk. Mr. Cox started in by areating his milk 

 on the basis that you have spoken of here today, and after working it for 

 awhile he came to the conclusion, after consultation with physicians in 

 that city, that it was not all right. He areated his milk as most every- 

 one does and it exposed the milk at the same time to the atmosphere. He 

 came to the conclusion that even then it did not sterilize the milk or did 

 not remove the contamination. He wanted to produce a pure milk. He 

 fitted up an areator and put the thing inside of a case so as to remove all 

 external air from it and had the milk areated in what is practically steril- 

 ized air. He got the physicians interested with him. He still thought he 

 was not getting the best. He got another scheme. He had a Cylinder 

 made, and, as I recall, it was 6 feet long and the milk was first run through 

 the cylinder in a very fine spray, and it had to pass entirely through steril- 

 ized air. I don't know of any other person in the United States doing 

 that, but he obtained the most satisfactory results and, of course, he got 

 the physicians in Terra Haute interested so that he could not supply the 

 demand for his milk. He was always trying to do better. He forced all 

 of his milk from his fifty Jerseys by means of this fine spray in one end 

 and out the other end of this long cylinder. He got eight cents a quart 

 for his milk. His man told me he used that milk for children especially 

 and that he could not supply the demand. I just want to show you whtit 

 pains a man went to to get pure milk. 



Q. Did he cool the air? 



A. Yes, the air was cooled, first cooled and then run through air 

 apparatus. And then sterilized ana then run through apparatus and then 

 the. milk spray, through that. 



Q. How much did he cool the milk? 



A. I think he cooled down to 38 degrees. 



Q. I would like to know what portions of bacteria arc fronds and 

 what portion are enemies? 



