Thanks for Dawson’s letter. Doubts his evidence that climate of land was not glacial when upheaved after submergence.

Encloses memorandum of questions for C. V. Naudin.

Expression of the emotions.

Is building a hothouse for plant experimenting.

JDH’s ideas on America are more atrocious than his. What a new idea that struggle for existence is necessary to try to purge a government! Probably true. Slavery draws him one way one day, another the next. Yankees are "detestable toward us". Tocqueville.

Trying to resolve disagreement between author of a paper, William Hopkins, and JH, a referee.

Sending a gift of his Weather Book. Hopes JH will send his comments on chapter 18. Has scarcely seen M. F. Maury.