GREAT BRITAIN 8 
8. Nos. 92 and 93, Vol. XII 
"Radar Controlled Air Survey Photographic 
Operations in Africa 194&-1952" 
by Major S. Hellings, R.E. 
Journal of the 
Royal Institution of Chartered Surveyors» London 
9. Vol. XXX Part IX 
"Recent Developments in Photogrammetry" (1951) 
by Professor E. H. Thompson, O.B.E., B.A. 
The Photogrammetrie Record 
^Published by the photogrammetrie Society, London) 
10. Vol. 1 No. 3 
"A description of the Thompson-tfatts Plotter" 
by Professor E. H. Thompson, O.B.E., B.A. 
11. Vol. 1 No. 2 
"The use of the Stereocomparator for 
Air Triangulation" (1953) 
by Brigadier H.A.L* Shewell, O.B.E., P.R.I.C.S. 
12. Vol. 1 No. 7 
"The use of Plotting Machines for 
1/1250 Air Survey" (1956) 
by Major D.V. Hutchinson, M.B.E., R.E. 
13. Vol. 1 No. 5 
"An Experiment in Aerial Triangulation" (1955) 
by Lt. Col. B. St.O. Irwin, R.E. 
14. Vol. 1 No. 6 
"The Chatham - Dunkirk Road Aerial Triangulation" 
(1955) 
by D. ¡V. G-. Arthur