No. 4.] FEEDS AND FEEDING. 41 



Mr. Wentwoktpi. I would like to ask if, in feeding sour 

 milk, or in mixing feeds with sour milk, you ever have trouble 

 from its being too laxative ? 



Professor Graham. I have never had any trouble of that 

 kind. I think you will find that it has the opposite effect. 

 If you feed sweet milk you won't get the results always that 

 you will when you feed it sour. The reason we advocate 

 sour milk is because of the effect that the lactic acid has 

 upon the digestive tract, both of chickens and of man. There 

 is nothing better for us than sour milk. You probably know 

 that Metschnikoff, the bacteriologist, one of the greatest 

 scientists that ever lived, noticed that the people in the Bal- 

 kan' Mountains and vicinity lived to an advanced age, and 

 kept healthy and vigorous ; he found also that they were mak- 

 ing a drink of sour milk that contained much more lactic 

 acid than we can get here in ours. They had a particular 

 kind of bacteria that produced about three times as much 

 acidity in the milk as our common lactic acid germs do, and 

 he said it was on that account that those people lived to such 

 a great age. 



Mr. Worth. Would we get any better results by separat- 

 ing the curd from the whey ? 



Professor Graham. I don't think so. We want the whey 

 because the acid is in it and there is very little in the curd. 

 If you could separate them completely, the acid would all 

 be in the whey. 



Evening Session. 



The chairman for the evening session was Mr. George E. 

 Taylor of Shelburne Falls, who introduced Professor Sears 

 of Amherst to speak upon " The !N'ew Orchard." 



