I f. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 149. 



B. T. GALLOWAY. Chief of Bureau . 



DISEASES OF DECIDUOUS FOREST 



TREES. 



HERMANN VOX SCIIREXK. 



Formerly Expert in Charge of the Mississippi Valley 



Laboratory' of the Bureau of Plant Industry, 



AND 



PERLEY SPAULDING, 

 Pathologist. Investigations in Forest Pathology. 



Issued June 30, iy09. 



WASHINGTON: 



GOVERNMENT printing office 

 190 9. 



