tlniteb States department of agriculture, 
Bureau of plaut IFnJmstry. 
Jforest ipatbolOQB. 
Brovm University, 
Providence, R, I., Pet. 28, 1916. 
Miss Mary A. Day, 
Gray Herbarium, 
Caratr idge, Ma ss. 
Dear Miss Day: 
Will you be so Rind as to inform rae if you have in the 
library at the Herbarium a copy of the "Tree Doctor" by John 
Davey, first edition , published about 1902? lor reply I 
enclose a frank envelope which will require no postage. 
"Very truly, 
Forest Pathologist. 
jfc/gjc 
