| Title | Notebook. "Demonstration of the Principles of the Tables used in comparing Boulton & Watt’s engine with Common Ones." [Circa Oct. 1780?] 26 pages used. Kept with (b)—(e) below. In Thomas Wilson’s hand. Includes tables comparing Poldice and Wheal Chance engines. [The contents are very similar to the "Memoranda made relative to Wheal Chance (See Correspondence and Papers Circa 1777—1801).] |