xx TREE WOUNDS AND DISEASES 



CANKER ON STEM AND BRANCH DUE TO") 



THE FUNGUS NECTRIA fig. i 

 SCAB ON APPLE DUE TO FUNGUS ATTACK to face page 170 



figs. 2, la 



STEREUM PURPUREUM fig. 3 



REPAIRING A BEECH TREE 188 



