October 21,1937. Flight out of Tucuman along Calchaqui Valley, over Salto, and return. Upper Calchaqui valley: Attempt to make sub-horizontal panorama. Failure because of drift of plane and proximity of subject. 20000 feet. 08:15.
Photographer's Note data comes from typed journals: 'Title List, Dr. and Mrs. Light's Central and South American Photographs, 1937. Part I Aerial Photographs made with the Fairchild F-8, 5 x 7 in. Roll Film Camera.'