CONGRESSUS INTERNATIONAL^ ORNITHOLOGICUS 
AMSTERDAM 1930 
PRESIDENT: 
Prof. Dr. E. LONNBERG ^ oo _ 
Naturhistoriska Riksmuseum AMSTERDAM - C., 
STOCKHOLM 50 
SECRETARIS: 
Prof. Dr. L. F. de BEAUFORT 
Zodlogisch Museum 
Plantage Middenlaan 53 
AMSTERDAM - C. 
lir . 'i lexan de r 7e tmo r e, 
c/o American Embassy, 
MADRID.Spain. 
Dear Ivlr.Wetmore: - 
I am sending you enclosed a letter of legitimation to 
% 
show to the Customs,oh arrival in Holland, in case you should 
bring over lantern slides or films. This letter will give you 
free importation of lantern slides as well as of films. 
