29 
It is highly important that some effort be made in the near 
future to determine as accurately as possible the distribution of 
the chestnut disease and to prevent its spread. Care should also 
G. Fruiting pustules and spore masses of the fungus from cultures, « 16. 
A, stages in the dev sie ed of the pustules; &, C, D, various forms of spore dis- 
charge in a moist atmosphe: 
be taken to prevent its introduction into new localities through 
diseased nursery stock. The chestnut growers of southern 
Europe should be warned against the importation of any species 
of Castanea from this country for public or private parks or 
