THE DAIRY BARN 



141 



connected with dairy work. A dark barn is almost always 

 a dii ty barn. By having plenty of sunlight, dirty conditions 

 are easily seen and are usually corrected. There should be 

 about four square feet of glass per cow. The best arrange- 

 ment is to have the windows extend from the ceiling about 



FIG. 37. Floor plan of a barn for 20 cows. 



halfway to the floor, as this makes it possible for the sunlight 

 to reach farther into the barn. 



128. The Floor. One of the most important considerations 

 of all is the floor. A satisfactory floor is comfortable for 

 the cows, sanitary, easily cleaned, durable, and not too ex- 

 pensive. The floors most commonly used are wood, con- 

 crete;, or dirt, with wood or concrete gutters. A floor of 

 dirt, although comfortable for the cows, is only allowable 

 under conditions where it is not possible to have a better 



