Pays. 
Organisations. 
10. Grande-Bretagne . 
Directorate of Colonial Surveys. 
Directorate of Military Surveys. 
Ordnance Survey. 
Meridian Airmaps Limited. 
Harward Marlachlan and Co. Ltd. 
Airsurvey Co. Ltd. 
12. Israël 
Survey of Israel. 
Photogrammetric Institute, Jerusalem. 
13. Italie 
Institut Géographique Militaire. 
Institut de Géodésie, Ecole Polytechnique de 
Milan. 
Ottico Meccanica Italiana (O.M.I.). 
Ente Italiano Rilievi Aerofotogrammetrici 
(E.I.R.A.) 
15. Norvège .... 
Norges geografiske oppmaling. 
Widerfes Flyveselskap og Polarfly. 
Norsk Polarinstitut. 
16. Pays-Bas .... 
Survey Department « Rijkswaterstaat ». 
Royal Dutch Shell Group. 
K.L.M. Aerocarto. 
Topographical Survey. 
International Training Centre for Aerial Survey. 
17. Suède 
The Geographical Survey Office. 
The Land Survey Board. 
The Department of Photography at the General 
Staff of Defence. 
The Royal Institute of Technology. 
Kjessler Mannerstrahle. 
18. Suisse 
Photogrammetrisches Institut der E.T.H.-Zürich. 
Laboratoire de Photogrammétrie de l’E.P.U.L. 
Lausanne. 
19. Yougoslavie . . . 
Institut de Photogrammétrie, Zagreb. 
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