Forced to again delay his journey to London but intends to arrive in time for Linnean Society anniversary meeting. Anxious that Sir Christopher Pegge [(1764-1822), physician] be made part of Council, also suggests [Thomas Thynne, 2nd] Marquess of Bath [(1765-1837)]. Proposes Baron Alexander [von] Humboldt for FMLS, and either [Jean] Cuvier or [Augustin] de Candolle if there is another vacancy. Mortified to miss the dinner at Somerset Place [House, home of the Royal Society]. Necessary for [Thomas] Marsham to have repaid all his debt to the Society by the anniversary, or a considerable part with sufficient apology.