| Description | H G Wilkinson's notebook 'The Geology and Field Work around and within the inland town of Totnes (06.09.1978); copy of an official Report on Site Investigation No 10415, River Dart Treatment Works (Geostrata Ltd, Bristol Feb 1973); also copy of printed paper referring to mineral production in Devon; handwritten paper entitled 'The Structure of Scientific Revolutions' and a letter from Wilkinson dated 26 Mar 1983. Annotated ordnance survey maps SX 85 NW; SX 86 SW; SX 76 SE; and SX 75 NE. A geological survey map Torquay, Drift sheet 350. |