174 



POtJLTBY CULTURE 



Where winds cause trouble in tearing off the rubberoid by 

 getting underneath it, the boxing boards should be replaced 

 by tunged and grooved flooring and the edges of the roofing 

 paper or rubberoid brought over the edge and securely nailed 

 using strips of tin made for the purpose. 



The back and two ends are thus made tight, leaving the 

 properly constructed open front, as illustrated in Fig. 61. In 

 constructing the interior the labor-saving devices should be 

 provided. By referring to Figs. 68 and 72, which are repro- 

 ductions of blue prints of the North Carohna Experiment 

 Station, these devices are seen to consist of drinking vessels 



Fig. 65. — A unit system house and yard: A, B, C, D, F, G, H, I repre- 

 sent separate runs for the separate compartments; E is an alleyway. 



which are quickly and easily cleaned, a mash hopper of suffi- 

 cient capacity to carry sufficient mash to last the flock a week, 

 hopper compartments for grit, charcoal and oyster-shells, 

 nests properly constructed, roosts and dropping boards con- 

 structed according to instructions. The open front ensures 

 sunlight, which in warm chmates can be left open all the year 

 and in cold chmates may be protected with a mushn curtain 

 or drop sash during the cold spells. It is essential that the 

 floor be free from moisture, as a cold, wet floor means unthrifty 

 flocks, and thus unprofitable. In a house where the floor is 

 noted to be wet it will also be found that there is water of con- 



