168 BOARD OF AGRICULTURE. [Pul). Doc. 



first, but after better acquaintance we recognize them as our 

 friends. Just so in the world of microscopic life. As we 

 know better those little organisms which form such an in- 

 teresting study to many people to-day, we are beginning to 

 recognize among them some of our best friends. They are 

 not all by any means our enemies. My subject is "The 

 use of pure cultures in butter-making." 



