REFERENCES
1 R. A. Nodwell and R. C. Buistow, “An Accurate Mount for Tri-Metrogon Photography”,
Canadian Journal of Research F 24, 501 (1946).
2 L. E. Howlett, “Resolution, Distortion and Calibration of Air Survey Equipment”, Photo-
grammetric Engineering 16, 41 (1950).
3 P. A. Tate, “Illuminance in the Focal Plane of Aerial Cameras”, Photogrammetric Engineer
ing 17, 19 (1951).
Tnstitut Géographique National, “Méthodes de Contrôle des Objectifs Photogrammétriques,
des Appareils de prise de Vues et des Surfaces Sensibles en Usage à L’Institut Géographique
National”, International Archives of Photogrammetry, 6th Congress.
5 K. Schwidefsky, “The Development of Photogrammetric Instruments in Germany”,
Photogrammetria 3, 4 (1950-51).
6 P. O. Fagerholm, “Den Fotografiska Upplôsningsfôrmâgan ur Flygfotografisk Synpunkt”,
Fotogrammetriska Meddelanden II, 1 (1950).
7 A. Frey Samsioe, Dr. Techn., and Percy H. Tham, Dr. Techn., “Two Problems in Photo
grammetry”, Photogrammetric Engineering 16, 813 (1950).
8 P. D. Carman, “Photogrammetric Errors from Camera Lens Decentering”, Journal of the
Optical Society of America 39, 951 (1949).
9 R. H. Field, “The Calibration of Air Cameras in Canada”, Photogrammetric Engineering
12, 142 (1946).
10 Hotine, “Calibration of Surveying Cameras”, H. M. Stationery Office, Professional Paper
No. 5.
n W. Roos, “On the Definition of the Fundamental Concepts in Photogrammetry”, Photo
grammetria VIII, 3 (1951-52).
12 R. Roelofs, “Distortion, Principal Point of Symmetry and Calibrated Principal Point”,
Photogrammetria II, 2 (1950-51).
13 H. Kasper, “Standardization of Test Methods for Photogrammetric Objectives”, Micro-
technic III, 5, 200 (1949).
14 H. Kasper, “Pour L’Unité des Méthodes de Contrôle des Objectifs Photogrammétriques”,
Bull. Soc. Belge Photogrammétrie 19 (Mars 1950).
15 R. David, “Le Contrôle des Chambres Photogrammétriques”, Bull. Soc. Belge de Photo
grammétrie, 21.
16 Air Survey Committee, “Calibration of Surveying Cameras”, Air Survey Committee of
New Zealand, Professional Paper No. 8.
17 F. E. Washer and F. A. Case, “Calibration of Precision Airplane Mapping Cameras”,
Photogrammetric Engineering 16, 502 (1950).
18 Mrs. Clarice Norton, “The Fairchild Precision Camera Calibrator”, Photogrammetric
Engineering 16, 688 (1950).
19 P. D. Carman and R. A. F. Carruthers, “Aircraft Camera Mounts—Their Design and
Testing”, Journal of the Optical Society of America 41, 311 (1951).
20 P. D. Carman and R. A. F. Carruthers, “Brightnesses of Fine Detail in Air Photography”,
Journal of the Optical Society of America 41, 305 (1951).
21 F. L. Corten, “The Photographic Quality of the Aerial Negative as a Limiting Element in
Photogrammetry”, International Archives of Photogrammetry, 6th Congress (1950).
22 L. E. Howlett, “Choosing an Emulsion and Processing Technique for Daylight Aerial
Photography”, Canadian Journal of Research A 26, 60 (1948).
23 L. E. Howlett, “A New Criterion for Measuring the Speed of Aerial Photographic Emul
sions”, Canadian Journal of Research A 24, 1 (1946).
24 P. D. Carman, “Dimensional Changes in Safety Topographic Aero Film Under Service
Conditions”, Canadian Journal of Research F 24, 509 (1946).
25 L. E. Howlett and D. L. Matthews, “New Criterion for Contact Printing in Aerial Photo
graphy”, Journal of the Optical Society of America 41, 752 (1951).
26 Mary Johnson, “Use of the Herschel Effect in Improving Aerial Photographs”, Journal
of the Optical Society of America 41, 748 (1951).
27 G. T. McNeill, “The Wet Process of Laying Mosaics”, Photogrammetric Engineering 15,
315 (1949).