Miscellaneous Positivist papers, including: (fols. 5-16) The religion of humanity (3rd ed., 1887) (fols. 108-29) notes, including biographical information about members of the Positivist Society in London, c.1878 (fols. 130-69) receipts by Congreve and others for payment of the 'subside positiviste', 1872-84.