U.S. DEPARTMENT OF COMMERCE 
Luther H. Hodges, Secretary 
COAST AND GEODETIC SURVEY 
H. Arnold Karo, Director 
AERIAL PHOTOGRAPHY 
AND PHOTOGRAMMETRY 
IN THE 
COAST AND GEODETIC SURVEY 
Captain Lawrence W. Swanson 
Asst. Director for Physical Sciences 
Coast and Geodetic Survey 
Delivered at the Congress of the International Society 
of Photogrammetry at Lisbon, Portugal, 1964.