CHAPTER XXIV. 



THE ALTERNATE AND PARALLEL SYSTEMS. 



The shape and arrangement of the tilt boxes should 

 vary to meet the requirements of the poultry keeper. 

 Instead of the openings on the tilt boxes for ingress and 

 egress being at the end, as in Figs. 71, 76, 78 and 141, 

 it will be necessary to have them on the side, in case of 

 an extensive plant for winter chicks, when they are 

 warmed by hot- water pipes in the usual way. But, 

 whether the openings are at the side or the end, the 

 ingress and egress is cut off at the half tilt. 



When the exit openings are at the ends of the tilt 

 boxes, a stationary box or apartment alternates with a 

 tilt box in a row or series, hence, for the sake of con- 

 venience, we will call this the alternate method. Another 

 method we call the parallel method, in which the tilt 

 box, if for grown fowls, may be twenty, fifty, or one 

 hundred feet, or more, long, divided by partitions into 

 sections for the various flocks, the stationary boxes 

 being in a row adjoining and parallel to the row of tilt 

 boxes, and the exit openings of the tilt boxes being at 

 the side. The parallel system will be fully explained 

 further on. 



The description of the indoor exerciser for grown 

 fowls on the alternate system is as follows : In the 

 interior views, Figs. 77 and 128, P is a passage for the 

 attendant. This house is built with its sidewalks mostly 

 underground, therefore the windows are set high and 

 not shown in these two cuts, although the camera has 

 revealed the light from them on the floor of the passage. 



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