BROILERS AND ROASTERS. 45 



to the passage, this is faced with a strip of i x 3 in. stuf 

 to which the doors are hung with spring hinges. Midway 

 between each two uprights at the passage is another 1x5 

 in. piece against which these doors or gates shut, and up- 

 the center of this strip reinforcing it and making a smooth- 

 finish where the doors meet is a strip i in. square. A 

 little below the level of the pen floors is a 2 x 6 in. strip 

 resting on brackets of the same, extending the whole length- 

 of the pens to make a step for convenient entrance to the* 

 pens when it is necessary to go into them. 



The floor of the pens is of cement, and the front wall' 

 and ceiling are plastered. The north wall would also haver 

 been plastered, but having been ceiled with boards when- 

 the house was first built it was not necessary to alter thaU 

 The house was used for years with no ceiling overhead, 

 and with a single wall in front, that being considered all' 

 that was necessary when individual brooders were used in 

 a part of it, and the pipes were boxed up, making art 

 enclosed brooder in each pen. 



In the drawing on page 43 I have indicated ther 

 heater pit in the middle of the house, though as a matter 

 of fact in this house, used for a time as a combination 

 house, there are two heater pits and two small heaters, oner 

 for each half of the house. When provision is made in 

 the plan for piping the entire house, the common way is to- 

 have the heater pit in the center, and have one, and some- 

 times two, large heaters in it, either one of sufficient capa- 

 city to heat the whole house under any ordinary conditions^ 

 Only one heater is used at a time, the second being reserved 

 for such emergencies as an extremely low temperature or 

 the break down of the other heater. 



