WINDOWS AND CURTAIN FRAMES 



125 



the proper material for the curtains, not heavy duck; the idea 

 being that they should be porous and permit a circulation of 

 fresh air without direct drafts. The frames may be hinged at the 

 top and made to swing inward or outward, or they may be made 

 portable and held in place by wooden buttons, operated from the 

 outside. Inasmuch as they are in use for only about four months 

 in the year, and then only at night or at such times when there is 

 a severe storm from the south, it is best to make the frames 

 portable, and to store them elsewhere when not needed. 



The position of the glass windows in the upper section of the 



-500- 



{Cornell Experiment Station) 



Fig. 87. — Methods of arranging colony houses and yards to save unnecessary 



steps. 



front wall should allow the maximum amount of sunlight to enter 

 the building. They may be made portable, similar to the cur- 

 tains, and stored elsewhere when not in use, or they can be opened 

 by sliding to one side, or by swinging outward, which also serves 

 the purpose of shedding driving rains from the south. 



Doors. — ^A small opening should be cut in the front wall as a 

 means of egress for the birds, and fitted with a door. The main 

 entrance door should be located at the end of the building, and 

 be of generous proportions. There is no economy, only incon- 

 venience, in a small entrance door. It should be large enough 



