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HABITS OP BIRDS. 



Ground-plan of an Egyptian Egg-oven. 



In each of the upper rooms is a fire-place for 

 warming the lower room, the heat being com- 

 municated through a large hole in the centre. The 

 fire-place is a sort of gutter, two inches deep and six 

 wide, on the edge of the floor, sometimes all round, 

 but for the most part only on two of its sides. As 

 wood or charcoal would make too quick a fire, they 



