Gasoline-Heated Brooder-House. 



193 



the glass or cloth area or other openings should be, has not yet been 

 determined satisfactorily, although many different plans have been tried. 

 Each plan here presented has some advantage and some disadvantage 

 over the others. The large glass window in the door furnishes a good 

 supply of light, satisfactorily distributed and a cloth area in the door 

 above the glass window provides a desirable method of changing the air 

 without drafts, taking it out at the highest point, and also furnishes some 

 light to the room (Figs. 69 and 75), but the door is expensive to make 

 and is of weak construction. The glass window when hung at the top 

 and swung outward, makes the house too hot in warm weather. To re- 

 move it during the summer and replace in the fall, is troublesome. It is 

 likely to get broken when the door is left open or while doing the daily 

 work. The small windows on either side of the solid doors places the 



Fig. 70. — -The Dangler aitd the Otnaha burners. 



light near the floor and provides an exit for the chickens. Figs. 65 and 

 66. The opening in the upper part of the door to admit light and air 

 higher up appears to be an improvement. Fig. 66. The door is service- 

 able and cheap. The reader will have to depend upon his own origin- 

 ality to construct a front which will provide light and ventilation best 

 suited to his conditions, basing his construction on the principle that there 

 should be provided about one square foot glass area to each 12 square 

 feet floor space and about the same amount of cloth area, depending 

 upon the thinness of the material, the location, and the tightness of the 

 house. If a small mesh wire screen is to be used instead of cloth, the 

 opening must necessarily be much smaller in size. 



A poultry wire screen should be placed inside the windows if they 

 swing outward or outside the windows if they swing inward, to prevent 

 the chickens escaping or marauders entering when the glass windows are 

 open, as they should be most of the time. 



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