May 14, 1951 
Dr. J. Van Tyne, 
Museum of Zoology, 
University of Michigan, 
Ann Arbor, Michigan. 
Dear Van Tyne; 
Yours of May 10 gives me exactly the 
information relative to the Kirtland Warbler trip that I 
needed. I note especially what you say relative to time 
required between the airport and the railroad terminal 
in Detroit. 
In the meanwhile, my New York date has 
now been definitely set for Monday, June 18 which cuts 
out that weekend. I can arrange to leave Washington on 
June 21, which would put me at Roscommon the morning of 
June 22. As an alternate to that, I could leave here on 
Friday June 8 to reach Roscommon the following morning, 
June 9, if that would not be too early for you. 
I would appreciate your letting me know fairly 
soon so that I may have my schedule straight. I wish that 
I had time to drive up myself but that is out of the question. 
Your advice relative to a warm coat and 
gloves is duly noted. I have now in hand the extension of 
my federal permit to include Michigan. If there are 
any formalities or charges relative to the Michigan permit 
let me know. 
Yesterday was a beautiful day in the Shenandoah 
National Park where, in addition to a search for migrants 
which were very scarce, I participated mentally in the 
centenary of the discovery of the Kirtland Warbler by plans 
in anticipation of seeing and taking one myself. The weekend 
and a day or two previous were quite cool so that few birds 
were moving. I put in Saturday collecting some Purple 
Crackles in the Shenandoah Valley. 
