WHERE TO KEEP FOWLS 



55 



can be flushed against the sill to prevent air and water 

 entering. 



The walls on all sides except the south are made 

 of one thickness of matched pine lumber with planed 

 side inside. The outside, including the roof, is covered 

 with one thickness of roofing paper. The only part 

 of the house that is double boarded is' the portion 

 directly back and above the roosting platform. An air 

 space is formed between the studding and the inner 



FIG. 8 — SIDE VIEW CORNELL HOUSE 



boarding, which is opened above and below. Holes 

 are bored through the plate, which permit the air to 

 circulate freely up between the studding through the 

 plate, between the rafters and out into the room again. 

 This makes the inner wall warmer than it would be 

 with a dead air space, owing to the fact that the air is 

 continually changing and, therefore, must be nearer the 

 temperature of the room than it could possibly be with 

 the dead air space, which in time becomes as cold as 

 the outside boarding. The front of the house is made 

 of one thickness of ship lap without paper either inside 



