MAY, 1910 



BULLETm 277 



CORNELL UNIVERSITY 



AGRICULTURAL EXPERIMENT STATION OF 



THE COLLEGE OF AGRICULTURE 



Department of Poultry Husbandry (Extension Work) 



THE PRINCIPLES OF BROODING 



THE IMPROVED NEW YORK STATE GASOLINE-HEATED 

 COLONY-HOUSE BROODING SYSTEM 



By J. E. RICE and C. A, ROGERS 



ITHACA. N. Y. 

 PUBLISHED BY THE UNIVERSITY 



2i)() 



