§ Lieut.-Colonel MOORE - BRABAZONasked the Parliamentary Secretary to the Board of Agriculture what steps, if any, have been taken to utilise the experience obtained during the War in connection with aerial photography for mapping purposes towards assisting the Ordnance Survey work in this country, having regard to the fact that many maps are now out of date?
Sir A. BOSCAWENThe value of aerial photography for the purpose of map-making in the theatre of war is fully appreciated by the Ordnance Survey, and its application to peace surveys is being carefully studied, but at present the process is generally more expensive than normal methods, and less accurate. The Ordnance Survey has full information on the subject, and is in touch with those who carried out air surveys on the Western Front and elsewhere. Some of these officers are now on the Ordance Survey staff.