SMITHSONIAN INSTITUTION 
UNITED STATES NATIONAL MUSEUM 
WASHINGTON 25, D. C. 
February 4, 1957 
AIR MAIL 
Dr. Alexander Wetmore 
c/o Dr. C. B. Eoford 
Canal Zone Biological Area 
Drawer C 
Balboa 
Panama Canal Zone 
Dear Wetmore; 
I am sorry to have to convey to you the sad news of 
the deaths of two members of the check list committee. 
Dr. Zimmer died on January 6 and Dr. Van Tyne on January 30. 
I have Just heard of the latter from Phil Humphrey, who tells 
me that Van Tyne had been ill for several months but that 
still the end was not expected. 
The check list committee has been sadly decimated since 
we began work on this new edition, with four of the original 
members now gone. 
I hope that things are going well with you in Panama 
and that you and Mrs. Wetmore keep well. 
Sincerely yours, 
Herbert Friedmann 
Curator, Division of Birds 
