REPORT OF COMMISSION I 
PHOTOGRAPHY AND NAVIGATION 
to the 
SEVENTH INTERNATIONAL CONGRESS 
AND 
EXPOSITION OF PHOTOGRAMMETRY 
to be held at 
Washington, D.C., U.S.A., 4-13 September, 1952 
EDMOND CLOUTIER, C.M.G., O.A., D.S.P. 
QUEEN’S PRINTER AND CONTROLLER OF STATIONERY 
OTTAWA, 1952