AMERICAN POULTRY CULTURE 



rectly ventilating a poultry house was a serious 

 problem. The ventilators which work quite satis- 

 factorily in dwelling houses and barns give very 

 unsatisfactory results on poultry houses, and are 

 little, if any, better than nothing at all. The 

 method most in vogue a few years ago was that of 

 having a loft above a loose ceiling in the poultry 

 house, and much of the moisture and impurities of 

 the air were supposed to be absorbed into the hay 

 and straw with which the loft was filled. This 

 was more or less unsatisfactory, however, and it 

 was not until the recent introduction of the use of 

 muslin or burlap as a partial or total substitute for 

 window glass, that the problem of properly ven- 

 tilating a poultry house reached a satisfactory 

 solution. 



The modern and model way of ventilating a 

 poultry house is by means of window openings in 

 the south side of the building, which are covered 

 with a burlap or muslin curtain in exceedingly cold 

 or disagreeable weather. During the remainder 

 of the time, winter and summer, these openings 

 are covered merely with wire netting. With the 

 house constructed tight on all other sides, as I 

 have advised, this system allows of a gentle diffu- 

 sion of air with no direct draft. The principle is 

 much the same as that involved in " you can't blow 

 into a bottle," because all the available air space 

 is already occupied. 



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