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POULTRY CTTLTURE 



and her brood is by making a combination sitting and brooding 

 coop with yard and extension yard, as follows: 



Make a box 2 feet square, providing four holes in each side 

 with a 1-inch brace and bit. The holes must be near the top, 

 and will give the hen ventilation and yet no draft on her. 

 Make the front end from 4 to 6 inches higher than the back 



Fig. 147. — 1, Embryo five days old. Note the germ and blood-vessels 

 extending from it: a, The air-cell. 2, An infertile egg: u., the air-cell. 3, 

 h, A dead germ about the fifth to seventh day. 4. Embryo about the fifteenth 

 day: a, the enlarged air-cell. 



and place a shed roof on it. Make an opening in the front 12 

 inches high and 8 inches wide, and the door so that it can be 

 closed at night to keep out skunks, weasels, and other nocturnal 

 enemies. In warm weather the door should be constructed of 

 netting to give sufficient ventilation. Make a yard as wide 



