Commontoealtf) of j^enngplbania 



Department of Forestry 



A REPORT 



ON 



THE CHESTNUT TREE BLIGHT 



THE FUNGUS. DIAPORTHE PARASITICA. MURRILL 



By JOHN MICKIvEBOROUGH, Ph. D. 

 MAY, 1909 



HA.RRISBURG: 



0. B. AUGniNBADCn, PRINTKK TO THE STATE OF PENNSYLVANIA 



1909 



