Francis m. Rackemann, M. D. 
OFFICE HOURS BY APPOINTMENT 
TEL. KENMORE 0810 
Walter S. Burrage, M. d. 
FRANCIS M. RACKEMANN, M. D. 
263 BEACON STREET 
BOSTON, HASS. 
January 6, 1930. 
Professor M. L. Pern aid 
Gray Herbarium 
Garden Street 
Cambridge, Mass. 
Dear Professor Pernaid: 
I am sure you will be pleased to see this letter 
which I have just received from Dr. Edsall In which he approves 
of our going ahead with the pollen survey. 
I, therefore, hope you will go ahead to talk 
either with Mr. Steward or with Mr. Smith as you think best. 
If possible, persuade one of them to work on this problem 
during the next year. 
It is particularly fortunate that this work 
will be done under your supervision. It assures me that it 
will be done well and that the efforts of the man will be 
most likely to lead to results which will not only be 
interesting but practical as well. 
When It comes time to arrange the details, 
I would be delighted to help in any way I possibly can. 
With many thanks and much appreciation for 
your interest, I am 
Yours sincerely. 
PMR:D 
P. S. May I have Dr. Edsall’s letter back again at your 
convenience? The enclosed copy of my letter to him you may 
keep. 
