"It is evident that you have not time now to pay me a visit, & indeed as Mrs Darwin is in daily expectation of her confinement I could hardly have asked you … When I saw your name & that of many other naturalists at Cambridge, I wished much to have been there; but my strength so often fails me, that I expected more mortification than pleasure …

I should have liked to have heard the Crater-of-Elevation discussion; after having read both sides, I cannot subscribe to that view; but I think there remains something unexplained about those many vast circular volcanic ruins …

I presume it is very unprobable [sic] that there will ever be a second German Edition of my Journal … I have largely condensed, corrected & added to the Second English Edition, & I am sure have considerably improved & popularised it".