Senate Document No, 653, 62-2. PLATE XIV. 
Fic. 1.—EXTERNAL APPEARANCE OF A YOUNG LESION OF THE CHESTNUT BARK 
Disease, SHOWING THE SPREAD OF THE DISEASE FROM AN INSECT PUNCTURE. 
Fila. 2.—THE SAME AS Fic. 1, WITH THE OUTER BARK REMOVED TO SHOW THE 
CENTRIFUGAL SPREAD OF THE MYCELIUM OF THE Parasitic FuNGus. 
