Ffeil MS 39. - Loose notes and material relating to the Memoir. Includes original drawings and tracings used for plates in the vol.; notes ...,

Loose notes and material relating to the Memoir. Includes original drawings and tracings used for plates in the vol.; notes concerning the composition of the vol.; lists of travelling expenses while engaged on the work; disorganised notes, largely statistical; newspaper cuttings and some miscellaneous material relating to lead mines; a 1" O. S. map of the Aberystwyth district on which O. T. Jones has superimposed the mines given on Absalom Francis's map of 1878.