114 The Truth About the Poultry Business 



boards cut to measure. While it could be made more cheaply 

 with less expensive lumber, it would not be so good. Cheap- 

 ness does not pay. 



The skylights permit the sun to flood every part of the 

 building, and sun is one of the greatest germ-destroyers 

 known. The building is therefore always as light as day. 

 In some locations, nothing but the best buildings can be 

 used on account of the winds. 



It is to be noticed that air currents differ in different 

 localities. Aviators run into what are called air pockets, an'd 

 many times one windmill will be run very fast while another 

 not very far away will not run at all. In large cities it is 

 noticeable that close to some buildings it is very draughty. 



In some places almost any kind of a poultry house will 

 do. They are either sheltered or out of the pathway of air 

 currents. An open-air house just a few feet away may be in 

 the pathway of whirling air currents or of the wind, which, 

 striking the building at a particular angle, causes a suction 

 which creates a draught. 



Some houses are not draughty in summer, but are draughty 

 in winter, and vice versa, because the wind comes from 

 different directions in the different seasons and the air 

 currents are different. 



Food troubles and roup are the cause of 95% of those fail- 

 ures in the poultry business which are not caused by "the 

 interests." They exceed all the other troubles which are of 

 miuor importance and which are not dealt with in this book. 

 They can be avoided simply by the use of sanitary methods. 



EOUP 



I believe that I have had a wider and more varied experi- 

 ence with roup than any poultryman in California. I have 

 been in some locations where roup did not cause much trou- 



