from a correspondence to Jenyns in 1841:

Dear Jenyns

I have been scandalously indolent in not sooner answering your kind enquiries about me and mine. The country at first acted like magic on me, but the charm has latterly lost some of its virtue. I am, however, a good deal stronger than when in London, but I do not feel that I shall have any mental energy for a long time and the Doctors tell me, it will be some years, before my constitution will recover itself. You and I can tell people in health, they have little idea what an unspeakable advantage they possess over us poor weak wretches. I judge from your note that Hitcham acted on your health, somewhat like this place did on mine, that is as a temporary relief.

I can only repeat, what I have said before to beg you not to give yourself any anxiety to hurry forward your part; let it come when it may. I feel sure it and all the other numbers (whatever you may say to the contrary) will be good dudrable work. I have lately had note from Bell, who has matter for Engravers ready, but also says nothing about M.S. for Printers. But I have made up my mind not to fret myself on that subject and just take things easy.

I certainly hope your health may ikmprove as the summer passes and follow my an Bell's example and take your Fish Part easy.

Believe me dear Jenyns
Most truly yours
C. Darwin

June 24th