©rap Iberbanum ||| 
Ibarvarb Ulniversitp 
B. L, ROBINSON, Curator 
CAMBRIDGE, MASSACHUSETTS, U. S. A. 
June 21, 1917. 
Prof. J. S’. Collins, 
468 Hope St., 
Providence, R.I. 
Dear Collins: 
At last, after years of delay and a great deal of work, we 
have Centuries 2 and 3 of the Exsiccatae Grayanae ready for issue. 
Yesterday I started to you by parcels post a carton containing a 
series of these centuries which are sent to you in grateful recog¬ 
nition of your kind aid in getting together the material for the 
series. 
It seems to me that these centuries make a creditable show¬ 
ing of the pleasant and effective cooperation on the part of some 
35 or 40 people who worked hard to produce them. I hope you will 
have a pleasant summer and that your work will take you into in¬ 
teresting fields, also that you will get a good and restful outing. 
Sincerely yours 
Dictated to HMB 
