444 CONNECTICUT EXPERIMENT STATION REPORT, IQI2. 
writer also believes that the apparent results would not justify 
the application of the method on a wholesale scale in other 
regions, for the following reasons: (1) Apparently neither the 
chestnut tree nor the blight disease was very common in the 
region under experimentation; hence the greater difficulty ‘of 
the disease starting there, and also the greater ease with which 
it could be controlled. (2) Although those in control evidently 
made a careful survey of the region for the blight, they over- 
looked infected trees. In a region with the chestnut tree and the 
disease more abundant, it would be impossible to locate all the 
diseased trees. (3) Where infected trees were cut down, the 
disease appeared on the bark of the stumps in some cases. To 
destroy the bark on the infected stumps as well is too great a 
task to be successfully accomplished without great expense. 
(4) No check areas, apparently, were reserved with which to 
compare the results of the treatment. 
Yet, based on this experiment apparently, local advocates of 
such measures succeeded in having the State of Pennsylvania 
establish a chestnut blight commission to fight the disease in 
that state along these lines. To aid in the further study of the 
disease in all its aspects and in the control work, a grant of 
$275,000 was made by their Legislature. Shortly afterward, 
the United States Government also appropriated $80,000 for 
further work by Metcalf’s department. With the aid of the 
government, and with more or less state aid, several of the 
states south of Pennsylvania have taken up this work, chiefly 
along the lines advocated by Metcalf and Collins, though appar- 
ently so far most of this work has been in the nature of pre- 
liminary surveys for locating the disease. 
In order to have a clearer idea of what has been accom- 
plished in a practical way in Pennsylvania by this commission, 
we recently wrote Carleton, who is now general manager, the 
following letter: “I understand from newspaper reports that 
the chestnut blight commission of Pennsylvania has found that 
spraying with Bordeaux mixture is effective in controlling the 
disease. I wish to ask for a statement from you concerning this 
report. Also, I should like very much to know what has been 
the outcome of your quarantine and cutting out work as carried 
on so far. Have you seen any conclusive evidence that this 
has been successful in checking the blight? Lastly, I should 
