U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PUNT INDUSTRY— BULLETIN NO. 149. 



B. T. GALLOWAY, fur/,,/ gureau. 



DISEASES OF DEGlDOOfJS FOREST 



TREES. 



BEKMANK VOX SCHRENK, 



Formerly Expert in Chaege of the Mississippi Valley 



Laboratory of the Bureau df Plant Industry. 



ANT) 



PERLEY SPAULDIXG, 

 Pathologist. Investigations t\ Forest Pathology. 



Issued June 30, 1909. 



ASHINGTOX: 

 government printing office, 

 1909. 



