| Further Information | Includes: Report on works authorised by the Derwent Valley Water Act 1899 by Edward Sandeman; Report of Mr. James Mansergh, C.E. on works authorised by the Derwent Valley Water Act 1899; Report of Professor W. H. Unwin, F.R.S. on the designs and mathematical calculations of the Howden Dam; Report on the Howden Reservoir 19th September, 1908; Joint report of Mr. G. H. Hill and the engineer on the Howden Reservoir 14th october 1908; Report on the Derwent Reservoir 16th April 1909; Report on the proposed west wing trench, Howden Reservoir, 19th November, 1908.
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