BROILERS AND ROASTERS. 37 



But though the pipe system now appears to have the 

 preference with large operators, the individual brooder is, 

 and no doubt will continue to be, very generally used by 

 smaller operators and by those whose work is in an experi- 

 mental stage, because the first cost is less, and it can often 

 be adapted to existing house arrangements with little or no 

 expense, when to install a pipe system would necessitate 

 remodeling a building. The individual brooders being 

 operated separately can be put in any convenient coop, 

 shed, poultry house or other outbuilding, one here and one 

 there, an advantage which appeals to one who does not 

 want to make the changes in or additions to his plant 

 which a pipe brooder house would require. 



25. Incubator Cellars. Incubators can be, and are 



successfully operated in all sorts of places, but every other 

 arrangement for them is of a makeshift character, either a 

 terrrporary arrangement, pending the construction of an 

 incubator cellar, or a substitute for the special incubator 

 cellar, when for good reasons that cannot be built. When 

 only one, or, at most, a few machines are to be operated, 

 some substitute arrangement may be advisable, but when a 

 greater number of incubators are to be operated a room 

 constructed especially with reference to the requirements 

 of this .work should be considered a necessity, and wher- 

 ever it is possible to set apart an appropriate room exclu- 

 sively for incubation, though but a single machine is to be 

 operated, the several advantages of so doing will more 

 than repay the trouble and expense of making a special 

 place for the incubator. 



There is practical unanimity of opinion as to the best 

 kind of room for incubators. A " cellar" about half 



