PROGRESSIVE POULTRY CULTURE 217 



admits air between the galvanized iron and the floor of 

 the brooder which is warmed without any admixture of 

 lamp fumes by the lamp underneath the sheet of galvan- 

 ized iron. This warm air then passes up through an 



APPLIANCES FOB HATCHING AND REARING CHICKS. 



opening in the floor into the drum and thence out into 

 the hover. 



The hole mentioned above is in the center of the 

 floor and is eight inches in diameter. Over this is tacked 



