UNITED STATES NATIONAL MUSEUM 
BUREAU OF AMERICAN ETHNOLOGY 
ASTROPHYSICAL OBSERVATORY 
NATIONAL ZOOLOGICAL PARK 
ALL CORRESPONDENCE 
SHOULD BE ADDRESSED 
TO THE SECRETARY 
iff 
SMITHSONIAN INSTITITTION 
IZ S'. A. 
NATIONAL GALLERY OF ART 
FREER GALLERY OF ART 
INTERNATIONAL EXCHANGES 
INTERNATIONAL CATALOGUE OF 
SCIENTIFIC LITERATURE 
January 1922 
To Friends and Correspondents 
of the Smithsonian Institution: 
The bearer of this letter, Dr. Waldo L. Schmitt, 
Curator of Marine Invertebrates in the United States National 
Museum, is engaged on scientific work for the Museum with the 
k 
purpose of collecting natural history specimens for its col- 
lections. His mission is wholly an official one and any 
courtesies or facilities v/hich may be extended to him in prose- 
cution of his work will be very greatly appreciated by the 
Smithsonian Institution. 
Very truly yours. 
'•‘ft 
