34 CHESTNUT TREE BLIGHT. 
typical specimens of the disease, will be sent to any person applying 
for them. Two specimens will be sent to each person—one showing 
the appearance of the disease on smooth bark, and the other the later 
development of the fungus on thick bark. In both these specimens 
the fungus will have been killed by soaking in formalin to insure 
against any infection from this source. __ ; 
So far as the supply permits, lantern slides and photographs will, 
upon applibation Be loaned for special lectures, exhibits, etc., to the 
officers of States, experiment stations, colleges, and schools where 
agriculture is taught, as well as to tree wardens and other officials 
whose work may bear directly upon local campaigns of publicity. 
This department will always examine any suspected specimens of 
this disease sent to Washington by mail, and will report the findings 
as promptly as possible. Before sending specimens, however, all 
persons are urged to read the paragraphs on symptoms on pages 6 to 
9 in order to select the specimens intelligently. For example, if the 
end of a girdled and withered branch is sent, it is not possible to make 
a dependable diagnosis unless a portion of the girdling area happens 
to be included. This is the only pe where the fungus is surely 
present, and the fungus iteslf must be seen in order to be absolutely 
sure of the disease. Portions of the bark that show the small orange 
or reddish-brown pustules, about the size of the head of a pin, should 
always besent,if these can befound. These commonly occur near the 
lower edge of the girdling area. 
PUBLIC COOPERATION. 
With many people familiarized with the appearance of the chest- 
nut-bark disease and its possibilities of harm, the disease will be 
noticed and stamped out by private effort in many places when it 
first appears and the public will understand and be ready to cooper- 
ate in any official measures of control as soon as these become neces- 
sary in any locality. 
Al possible forces must be enlisted in a campaign of publicity. 
The cooperation of all newspapers, particularly local papers, can be 
easily secured in all the States where the chestnut is an important 
tree. A portion of the program for Arbor Day, 1912, should be 
devoted to a consideration of this disease. Teachers of nature study, 
botany, or agriculture in the public schools can do great service by 
teaching their pupils how to recognize the disease and by training 
them to be on the lookout for its first appearance in the home com- 
munity. Such a body as the “Boy Scouts” can, if properly trained, 
become in every community a most efficient force for locating the 
disease. The boys will readily appreciate that such work is real 
“scouting” against a most insidious and destructive public enemy. 
And, finally, many private owners of chestnut trees will be eager to 
cooperate with the State authorities in the early elimination of 
advance infections if only they are able to recognize such infections. 
THE PROTECTION OF THE SOUTHERN STATES. 
It must be remembered that the bark disease has as yet done only a 
small fraction of the damage that it is undoubtedly capable of doing. 
The best chestnut timber of America is south of the Petoniag River 
