SHELTER FOR SWINE 245 



which it is built. Ordinarily for latitudes north of cen- 

 tral Illinois such a building should have more than one 

 thickness of boards for the wall. It is suggested, in or- 

 der not to provide places for rats and mice, that the build- 

 ing be first sheeted on the outside of the studding, over 

 which the siding is nailed with paper between. If then 

 the roof is made equally warm, it will be comfortable in 

 seasons that are not exceedingly cold on account of be- 

 ing far north, without any artificial heat. Ventilation is 

 provided by* opening the upper part of the windows in the 

 upper part of the building. 



Sunlight is one of the most important considerations, 

 both for warmth and sanitation. The building repre- 

 sented in the illustration stands east and west with the 

 windows on the south side. If sufficient windows are pro- 

 vided, when the sun is shining, the building will be com- 

 fortably warm during the winter season. Besides fur- 

 nishing warmth, sunlight is a very strong disinfectant. 

 The direct rays of the sun will destroy all disease germs 

 very quickly, and a sufficient amount of light, even 

 though the rays are not direct, will destroy practically all 

 disease germs, but not quite so readily. By having a 

 building of proper width and windows of proper height 

 in accordance with the width, the greatest benefit can be 

 obtained from the sun both in warmth and in the destruc- 

 tion of disease germs as well as to furnish dryness to 

 some extent. 



The house shown in Cut 28 is 30 feet wide with an 

 8-foot alley running lengthwise through the middle, the 

 pens being on each side of this. The upper part of the 

 windows in the lower part of the building which is on the 

 south side of the alley are 5 feet 6 inches from the floor. 

 The lower part of the windows in the upper part are 8 



