London, A.L. 4p. (see his Letters to John Vaughan, no.4) Insects infecting American corn; resulting trade restrictions; Hessian fly. Order for American journals. Mentions Sir Joseph Banks, Joseph Priestley, B. Franklin, and others.
ALS. 3p. Discusses visit to Philadelphia in April 1824, his portrait by C.W. Peale, his book Wanderings, and 2 expeditions to Africa. Mentions Sir Thomas Gage, Charles Butler, Lord Henry Bathurst, Sir Joseph Bank
General physical description: 9x7 1/2
