Thoreau writes in his journal:
Thoreau also replies to Franklin Forbes’ letter of 14 November:
I shall be happy to lecture before your Institution this winter, but it will be most convenient for me to do so on the 11th of December. If, however, I am confined to the month of January I will choose the first day of it . Will you please inform me as soon as convenient whether I can come any earlier.
Yrs respectfully
Henry D. Thoreau