The object of this Supplementary Estimate is to obtain Parliamentary authority for a liability in excess of the sum provided under the Post Office Railway Act, 1913. The sum provided by that Act was £1,100,000. It is now anticipated that the complete cost of completing and equipping the railway will total £1,650,000. The difference is due to the increase in the cost of labour since 1913. The Post Office will not require more money for the purpose during this financial year because there are savings on the Post Office Vote as a whole sufficient to cover the amount which is likely to be paid out before 31st March next. Accordingly a Supplementary Estimate is taken for a nominal sum of £10. The present position of the work is as follows: In October, 1920, tenders were invited for electrical equipment but the cost, even of the lowest tender, was so high in relation to pre-War estimates that it was decided to await more favourable conditions. In the autumn of 1923 it was considered that the time had arrived when operations could be resumed, and the Government of the day authorised my predecessor to take steps to proceed with the work as one of the schemes for the relief of unemployment. A contract for the completion of the permanent way and for minor tunnelling work has recently been placed with the approval of the Treasury, and the contractor is already at work. Tenders for the electrical equipment have also been called for. This tube railway runs from Paddington Station to the eastern district office in Whitechapel, and connects up with several sorting offices, and with Liverpool Street Station. Its total length is about 6½ miles. I think that is as much information as I can supply in relation to the work.