UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 275 



Contribution from the Bureau of Plant Industry 

 WM. A. TAYLOR, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



April 7, 1916 



FOREST PATHOLOGY IN FOREST 

 REGULATION 



E. P. MEINECKE, Forest Pathologist, Office of Investigations in 

 Forest Pathology 



Introduction • . 

 Regulation of Yield 



CONTENTS 



Page 



1 



, 2 



Page 

 Methods of Investigation . . . o . « 22 

 Conclusions and Outlook 53 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1915 



