BABBAGE, Charles. Autograph Letter Signed to Davies Gilbert, asking for details of Gilbert's friend Sir Humphry Davy, which he needs for an obituary notice. Creation dates: 27 Sep 1829
BENTHAM, Jeremy. Autograph working draft of treatise on empire, the fragment beginning 'as with us, it should be understood ...' and breaking off 'to these are added all admirers of the roast-beef and glory'. Creation dates: [Circa 1790?]