To William Francis1

My Dear Francis.

Gott sei dank die Arbeit ist jetzt fertig2 – I send you the last pages of the paper3 – I forgot to note the closing number of the paragraphs4 and must beg of you to continue the numbers into the portion which I now send you – My brain is very tired and I will now give it two days rest, if it will take them which is a problem –

Sincerely yours | J Tyndall

StBPL T&F, Authors’ letters

[1 October 1851]: This letter is dated by the allusion to Tyndall’s paper on the polarity of bismuth (see n. 3). Tyndall posted the greater part of that paper on 29 September (letter 0536) and expected to send the remainder the following day. According to his journal (JT/2/13b/550), he finished the paper late at night on 30 September / 1 October and, according to letter 0540 (1–2 October) he posted the remainder of the paper that day. This letter was written on 1 October to accompany the paper.

Gott … fertig: Thank God the work is now finished (German).

the paper: Tyndall’s paper on the polarity of bismuth (cited letter 0525, n. 2). While this letter does not identify the paper sent, the paper on bismuth was sent in two parts and in the journal entry in which Tyndall recorded sending the last pages of the paper on bismuth he wrote a similar comment on tiredness: ‘my body was completely used up. I will now take two days rest – If I can’.

closing number of paragraphs: that is the last paragraph number in the portion of the paper sent with letter 0538.

Please cite as “Tyndall0539,” in Ɛpsilon: The John Tyndall Collection accessed on 2 May 2024, https://epsilon.ac.uk/view/tyndall/letters/Tyndall0539