Enbotuia CANKER OF CHESTNUT 543 
It was known to be generally established in the western part of Long 
Island, Staten Island, and the counties of New York, Westchester, and 
Rockland. It was also expected that Orange county had been invaded 
to some extent.” 
Range of the chestnut in New York State 
Reference to the accompanying map (Fig. 78) shows that the chestnut 
region of the State lies in two almost separated areas — the Hudson 
Valley, and the central and western parts of the State — and the two 
areas are connected by a narrow band of chestnut skirting the Delaware 
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LONG ISLAND 
Fic. 78.— Map showing distribution of the chestnut canker in New York State 
a, Canker abundantly present in 1911 
b, Spot infections numerous im TOIL 
c, Spot infections numerous in 1913 : 
d, Area containing more or less chestnut that is healthy 
River in Sullivan and Delaware counties. There is no chestnut to be 
found in the Adirondack Mountains, and but little in the Catskill Moun- 
tains and the Highlands in Ulster, Sullivan,*and Delaware counties. 
The extreme northeastern corner of the State contains but a few scattering 
chestnut trees. 
Conditions in IgII 
The accompanying map (Fig. 78) shows the results_of the survey in 
fixing the limits of spread of the disease at that time. East of the Hudson 
River the disease was found abundantly as far north as Albany. The 
chestnut is most abundant along the state line between New York and 
Connecticut and Massachusetts, in the range of mountains making up 
