32 



2"x3" is Yz" higher than the one before it. This gives a pitch of 6" 

 in 60'. Upon each 2"x3" and parallel to it is placed on edge, and 

 nailed to the center stud, a piece of pine board i' wide and 3'-2" 

 long, lapping 2" on to stud. Against the ends of these boards next 

 the alley long boards 1' wide are nailed at right angles to the2"x3" 

 pieces. This makes lower portion of wall between pens and alley. 

 Notches are cut in tops of cross boards to receive pipes. After the 

 pipes are in, another set of boards like the others is placed on top of 

 the others, making alight fence between pens and between pens and 

 alley of a height of 2'-o". 



The heater pit is walled with stone and cement, and the floor 

 cemented. 



The heater is a Dragon, 17" fire pot, sold by Smith & Thayer Co., 

 Boston, Mass. Pipes running from heater to headers are 2" and 

 brooder pipes are \" . Expansion tank is at top of pipe set in one of 

 top outlets of heater. Top of expansion tank close to roof. 



Heater drafts are controlled by electric regulator made by Electric 

 Heat Regulator Co., Minneapolis, Minn. Cost $20 when purchased. 

 Operated by thermostat placed under pipes of first pen. About 

 eight inches of pen is fenced off for this purpose. A second ther- 

 mostat operates bell in sleeping room of attendant wherever it may 

 be. The first governs the temperature within 2°, while the second 

 rings bell in case of accident to the first, if the temperature runs up 

 or down 7° from normal. 



Pens are 5'xio' outside the pipe sections, which are 5'x3'. Pens 

 are separated by boards 1' wide and above that 1" mesh wire 3'-o'' 

 wide. Holes are cut through the separating boards by which chicks 

 may be driven from one pen to the next. 1" mesh wire was laid on 

 the ground and nailed to the sills before any of the inside work was 

 started. This is to keep out rats and is buried under the dirt with 

 which pens and alley are filled. 



There are 12 pens, the heater pit and a room the size of two pens 

 on the other side of the pit. Doors in both ends of the building. 



Chimney is of tile set in galvanized collar on roof. 



No hovers are used, the open pipe system being preferred. Hov- 

 ers were not successful and were discarded. 



This house is a successful chicken raiser." 



