24 
ber, 1906, has continued its ravages among the chestnut trees in 
and about New York City with unabated virulence. Preventive 
measures have apparently not affected it in the slightest degree. 
The pruning of diseased branches has entirely failed to check it, 
Fic. 4. 
Chestnut trees in the New York Botanical Garden killed by the disease. 
