U. S. DEPARTMENT OE AGRICULTURE. 

 BUREAU OF PLANT INDUSTRY—BULLETIN NO. 44. 



K. T. i;ai,i,ii\vay, Ckkf.af Buretik. 



THE BITTER ROT OF APPLES. 



BY 



HERMANN VON SCHRENK, 

 Special Agent in Charge of the Mississippi Valley 



- 



Laboratory, 



AND 



PERLEY SPAULDING, Special Agent. 



VEGETABLE PATHOLOGICAL AND PHYSIOLOGICAL 

 INVESTIGATIONS. 



Issuer July is, 190$ 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1903. 



