UNITED STATES DEPARTMENT OF AGRICULTURE 
BUREAU OF PLANT INDUSTRY 
FOREST PATHOLOGY 
Brown University, 
Providence, it. I., August 29, 1919. 
Miss Edith J&. Vincent, 
Cray Herbarium, 
Cambridge, Mass. 
Bear Miss Vincent: 
I have your letter of August 15 which came while I was on a two- 
weeks* field trip. The information is just what 1 wanted, and 1 wish to 
thank you for the same. 
Very truly, 
J. FMSKilH COLL I IIS. 
JFC.HA5I 
Forest Pathologist. 
