1 Correction to: HPLS (2021) 43: 22 https://doi.org/10.1007/s40656-021-00378-7

In this article the reference to the “22 April, 1881” letter from Charles Darwin to William Graham in the Abstract and in the Heading of Section 4 should instead have referred to the “3 July, 1881” letter from Charles Darwin to William Graham.

On page 8 of in this article in the sentences beginning ‘(“[N]ow that I am old…’ and ‘This was a pill… ', the in-text citation to '[Darwin Correspondence Project 1320]' should have read '[Darwin Correspondence Project 13230]'.

On page 9 of this article in the sentence beginning ‘Farrer wrote to Darwin…’ the in-text citation to '(Darwin Correspondence Project 13, 298)' should have read '(Darwin Correspondence Project, 298)' and in the sentence beginning ‘That said, Darwin…' the in-text citation to ‘(Darwin Correspondence Project 13, 299)’ should have read ‘(Darwin Correspondence Project, 299)’.

On page 9 of this article in the sentence beginning ‘What should be noted…’ a space is missing between ‘simply’ and ‘cannot’.

The original article has been corrected.