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December 1946 Number
Proceedings of 12th Annual Meeting
58 other sections not shown
Abrams accuracy adjustment aerial photogrammetry aerial photographs Aerial Surveys agencies altitude American Society angle areas Award azimuth base Bausch & Lomb Bougainville Island Calif camera mount charts clay color computation construction control points determined distance elevation equipment error Fairchild feet field Figure film focal length Forest glacial GRAFLEX graphic ground inches indicate instrument intersection Island isocenter latitude lens light loess map plane measured method military mosaics multiplex multiscope Navy oblique photographs obtained operations optical orthocenter parallax parallel parent material perpendicular photo points photogram PHOTOGRAMMETRIC ENGINEERING planimetric plotting plumb point Polaroid Corporation position principal line principal point radial line reconnaissance rectified result scale Service sheet slopes Society of Photogrammetry soil pattern soil profile square miles station stereoscopic subgrade Talbert Abrams templet terrain tilt tion trace triangle trimetrogon U. S. Geological Survey Vectographs vertical Washington