MASSACHUSETTS 

 AGRICULTURAL EXPERIMENT STATION 



Bulletin No. 391 April 1942 



A Survey and Study of 



Spontaneous Neoplastic Diseases 



in Chickens 



By Carl Olson, Jr., and K. L. Bullis 



Neoplastic diseases (tumors) cause much loss to the poultry industry. This 

 collection of cases of neoplasia gives information of the characteristics and 

 relative incidence of the different types. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



