This is the fourth in a series of pubHcations by Uni- 

 versity of New Hampshire Agricultural Experiment Sta- 

 tion researchers on the subject of efficient chore practices 

 in the dairy barn. Others have been : 



Part I. Choree Travel in Dairy Barns by John C. 

 Holmes. Station Circular 72 (1945). 



Part 11. Rapid Milking by Harry C. Woodworth, Ken- 

 neth S. Morrow, and John C. Holmes. Station Circular 76 

 (1947). 



Part HI. The Problem of Slow Milking Cows by Harry 

 C. Woodworth, Kenneth S. Morrow, and Earl M. Elliott. 

 Station Circular 80 (1949). 



