?3 



BROILERS AND ROASTERS. 



An Incubator Cellar, Banked to Eaves. 



under ground provides most economically the conditions 

 most favorable to the control of temperature, and to keep- 

 ing the incubators in operation as far as possible from the 

 effects of atmospheric changes or other external influences 

 which might affect incubation. 



Two illustrations of incubator cellars representing com- 

 mon plans are given herewith. These give external views- 

 of the cellars. It hardly seems necessary to give a diagram 

 of the ground plan. In the first illustration the cellar, in 

 a side hill, is banked up quite the full height of the walls. 

 In the other, the cellar is built into a sort of natural curve 

 in a bank, the north and west walls being wholly below the 

 ground, while on the east a<nd south sides- the level of the 

 ground outside is only about two feet above the cellar floor. 

 Exact comparisons of the merits of the different cellars, as- 

 affected by the "differences in construction, would be difH- 



