DISEASES OF POULTRY 



THEIR ETIOLOGY, DIAGNOSIS, TREAT- 

 MENT, AND PREVENTION 



BY 

 RAYMOND PEARL, PRANK M. SURFACE 



AND 



, MAYNIE R. CURTIS 



Biologists in the Maine Agricultural Experiment 

 Station 



Wjfa gorfe 

 THE MACMILLAN COMPANY 

 1915 V 



AU rights reserved 



