June 15. 1951 
Dr. A. J. Berger, 
c/o Department of Anatomy, 
East Medical Building, 
Ann Arbor, Michigan. 
Dear Dr, Berger: 
I reached Washington again last evening after an hour 
and forty minute flight from Detroit. My week with Dr. 
Van Tyne and you was most satisfactory and I still marvel 
at the Kirtland's Warbler and its friendly cooperation to 
naturalists. 
I looked through my file on the Cuculidae and found 
that, to my regret, I have only one copy of the Shufeldt paper. 
I was in hopes that I had picked up a duplicate, as has often 
happened with some of these older contributions.’ 
I did, however, find a copy of von Ihering 'a paper 
that I mentioned to you which is a duplicate, and which I 
enclose herewith. The account was published in 
Portuguese with the present translation in German 
immediately following. I hope that this may be of some 
use to you. It goes to you with my compliments. 
I greatly enjoyed being with you and Mrs. Berger to 
say nothing of his nibs, the youngster. 
I enclose also another bibliographical item on 
cuckoos that may be of interest in your files. 
With the hope that you will have had continued success 
in your studies, I am 
Sincerely yours. 
hs 
Enclosure 
A. Wetmore, 
Secretary. 
