4J#'%'^'H^ 



Plate XXVI.— A Common Type of Crotch Canker. 



Acer pJatanoides on an east and west street, with canker, A, on east side about 

 1.7 m. above ground; circumference at twig below canker, 81.3 cm. 



(Photographed in July, 1911.) 



