(Sraip Iberbariutn 
fearvarb ‘^University 
B. L. ROBINSON, Curator, 
Asa Gray Prof. Syst. Bot. 
M. L. FERNALD, 
Fisher Prof. Nat. Hist. (Bot.) 
MARY A. DAY, Librarian 
CAMBRIDGE, MASSACHUSETTS, U.S.A. 
May IS, 1922. 
Mr . G . A. We atherby, 
11 wells Avenue, 
last Hartford, Conn. 
Dear Mr. V/estherby,- 
I have been over the paper on the Grimes material 
and made various insertions which you asked, and am handing it to 
Dr. Hooinson. In one or two cases I took the liberty to modify 
your statement to the extent of changing "J m." to 3 mi lei, since I 
was afraid those not wholly familiar with American colloquialisms 
would hardly interpret it correctly. 
In regard to the Polypodium paper; I should be glad if you would 
tell Mrs. Hall that I am publishing a revision of the group. Your 
letter showed the necessity of pushing the matter along, so I have 
sent the manuscript in to the printer without waiting for some 
additional articles which I intended to unite with that one. 
Thank you for the material of Betula which I shall examine with 
interest. I have not yet had a chance to look at it. 
Sincerely yours, 
P? 1 
MiP/PMG 
