Windoivs 107 



size not larger than 8x10 inches, are used, it will 

 be found very satisfactory to place them about six- 

 teen or eighteen inches from the floor. At noon, 

 during the shortest days of the year, in the lati- 

 tude of New York city, the sun's rays make about 

 the same angle with the horizon as that of a quar- 

 ter pitch roof; that is, an object one foot high 

 would cast a shadow two feet long. Then, if the 

 bottom of the window be placed eighteen inches 

 from the floor, the sunshine on the floor will be 

 three feet from the side of the building in which 

 the window is placed. In cold latitudes it is a 

 common and somewhat serious mistake to use 

 more windows than are absolutely needed for the 

 health and convenience of the fowls. While sun- 

 light is desirable, many windows make the build- 

 ing cold, unless they are covered with shutters or 

 heavy curtains, during the severest weather. It 

 has been found that windows radiate about four 

 times as much heat as the same area of side walls 

 in average well -constructed dwelling houses. If 

 warm houses are desire.d large window surface 

 should be avoided. A coat of whitewash on the 

 interior will aid materially in making the build- 

 ing light. 



Sliding windows are preferred on many ac- 

 counts to those that open by means of hinges. 

 They can be partially opened for ventilation in 

 warm weather, and during the extreme heat of 



