Chestnut tree showing early stage of disease ; note small girdled twig on upper part 

 of the tree in the centre of the picture. 



Large chestnut tree partly dead. Note sprouts with leaves near the top, the 

 dwarfed leaves on the middle right-hand limb, and the healthy lower branches with 

 normal leaves. Scene at Rawlinsville, Fenna. Photograph by Prof. Collins. 



