§ Sir F. SYKESasked the Minister of Agriculture whether the Ordnance Survey Department have employed qualified civil air organisations for survey work in this country; and, if so, whether he will make a statement as to the utility and cost of the work as compared with ground survey, the improvements in efficiency and cost which the Government's survey and air advisers consider may be anticipated as the result of increased experience and use of aircraft for survey purposes, and the changes thereby 35W indicated as desirable in future years in the permanent staff of the Survey Department?
Mr. GUINNESS:The Ordnance Survey have employed a civil firm to take air photographs of a certain area. The object is experimental, to determine what would be the value of air survey in the revision of the maps of the country. As the experiment is still in progress, and is not likely to be concluded for at least six months, it is too early yet to form any opinion as to the results.
— Portsmouth. Devonport. Chatham. Sheerness Pembroke. Rosyth. Valuation. £ £ £ £ £ £ 1923–24 … 85,577 70,225 27,984 16,863 7,185 34,933 1924–25 … 85,577 70,225 27,984 16,863 8,512 36,391 1925–20 … 85,577 73,524 27,984 16,863 8,512 36,391 Contribution to the Rates. 1923–24 … 41,998 46,817 17,589 11,363 5,829 12,564 1924–25 … 41,380 44,476 17,123 10,806 7,107 13,386 1925–26 … 41,380 49,628 18,314 10,524 7,004 14,110