246 SWINE 



feet above the floor. With this arrangement the direct 

 sunlight falls in the pens occupied by the pigs during the 

 farrowing seasons in late fall and early spring. With the 

 windows made as long and set as low as shown above, 

 the maximum amount of sunshine is obtained at these 

 times. Thus, when the weather is quite cold, pigs can 

 be farrowed in such a house under conditions that are 

 warm, sanitary and convenient. If a building is con- 

 structed on this plan, it will answer the purpose for most 

 all latitudes, because farther south pigs are farrowed 

 earlier and farther north later. If, however, the building 

 is to be made narrower, the upper windows should be 

 lowered a little to get the maximum amount of sunlight 

 on the floor of the pens at the proper time. 



With the windows arranged as suggested, there is no 

 direct sunlight in the pens during the summer. This 

 together with the arrangement of wire partitions, as 

 shown in the cut on page 251, and the doors and win- 

 dows, make the building cool and comfortable for 

 summer use. At such times the doors at the ends of the 

 building, the doors leading from the pens to the outside, 

 and the upper part of the upper windows are opened, 

 allowing the hot air to pass out while the cool air coming 

 in near the ground can circulate freely over the entire 

 bottom of the building. It is not obstructed because the 

 partitions are all of wire, as will be outlined later. 



Farmer's Bulletin 438, U. S. Department of Agricul- 

 ture, issued April 15, 1911, gives sunshine tables for the 

 purpose of locating windows in houses of this kind. 

 These are helpful, but in the cut used to illustrate this, 

 the upper windows seem to the writer to oe too short 

 for maximum usefulness and too high for late fall far- 

 rowing. The maximum sunshine lOr the chort windows 

 is had only from 10 a. m. to 2 p. m. 



