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POULTRY CULTUEE 



buildings may be kept clean. All fixtures, dropping boards, 

 roosts, nests, and other equipment should be made movable so 

 that they can be taken out and thoroughly cleaned and disin- 

 fected and rendered free from vermin. 



Figure 68 is a"plan for a double unit system house. A similar 

 house was first designed and advocated by Prof. H. R. Lewis, 

 of New Jersey Experiment Station; blue prints of this are 

 furnished the residents of North Carolina, together with bill 

 of lumber, to assist them in constructing suitable houses for 

 that mild climate. The house is 40 feet long and 20 feet 

 wide (outside dimensions). The sills are to be of yellow pine. 



Fig. 69. — Six-sidod mesh poultry wire. This is a poor netting, and to 

 hold it in shape in the fence it is necessary to make a frame for it so that 

 it is possible to staple it on all four sides of the panels. 



4 by 6 inches, and to be bolted to a concrete foundation, 4 

 inches wide and 24 inches deep. This wall is laid in tamped 

 crushed rock or cinders, the entire foundation trench being 3 

 feet deep. This allows of good drainage and prevents the 

 floor from being wet. The entire floor-surface consists of 10 

 to 12 inches of tamped crushed rock or cinders and 3 to 4 

 inches of cement. The cement should be of smooth finish, 

 using a mixture of 1 part Portland cement to 2 parts sand for 

 the finish coat and 1 to 7 for the balance. It will be noted 

 that the roof is of the shed type, which is one of the cheapest 



