Autograph letter signed : On board the steamboat from Pittsburgh to Cincinnati, to William Charles Macready, 1842 Apr. 1.

Alluding to a "despondent letter" from Macready; telling Macready that he should not let "things so mean and small ... and utterly separated from the exercise of [his] genius" disturb him; referring to John Forster and John Elliotson; discussing Macready's eating habits and noting that "no man can work in mind and body, long, unless he uses a dining table as christians should"; mentioning his "extraordinary success in magnetizing Kate" [Catherine Dickens]; expressing his negative opinions about the United States: "I believe the heaviest blow ever dealt at Liberty's Head, will be dealt by this nation in the ultimate failure of its example to the Earth."