Dated 1837-1870. From Various papers including biographical material relating to the life and career of Charles Wheatstone, and patents, 1757-1975.

Papers found inserted in books in the Wheatstone Library. Includes letter to Wheatstone from John Tindall, undated [1870]; letter to Wheatstone from C Boyd, in which Boyd asks for Wheatstone's co-operation on a project, 2 Jun 1837; list, by Wheatstone, of books on acoustics (undated); page of rough scientific sketches/drawings (undated); page of notes including scientific equations and diagram (undated).