April 11/64.
Sir/ I beg to inform you that Dr Francis has gone out of town for a few days, but on his return he shall have your letter.2
Would you have the goodness when you are in this direction to look in & I could then show you the books with the receipts & payments made on your account at different times.
The only charges we have now to make are two items—200 copies of “Laplace’s corrections for the velocity of Sound”3, & the Subscription to “Poggendorff for 1863.4
I am, Sir, | Yours most respectfully | Charles Gyde | for Taylor & Francis5
Professor Tyndall, F.R.S. | &c
200 Laplace’s corr[ections]. for the velocity of sound. | ¼ sh[eet]. Phil. Mag— | Poggendorff 1863.6
St Bride Library, Authors’ letters
Charles Gyde: see letter 2085, n. 4.
your letter: letter 2082; see also letter 2085 from Francis to Tyndall.
“Laplace’s corrections for the velocity of Sound”: J. Tyndall, ‘Note on Laplace’s Correction for the Theoretic Velocity of Sound’, Phil. Mag., 26 (1863), pp. 384–7.
Poggendorff for 1863: Johann Christian Poggendorff (1796–1877) edited the Annalen der Physik between 1824–76; the journal was often referred to by his name in this period.
Taylor & Francis: a publishing house founded in 1852 when William Francis joined his father Richard Taylor (1781–1858) in his business. Taylor initially founded his company in 1798. Their subjects covered include agriculture, chemistry, education, engineering, geography, law, mathematics, medicine, and social sciences. It was not public knowledge that Francis was Taylor’s son (see W. H. Brock and A. J. Meadows, The Lamp of Learning: Two Centuries of Publishing at Taylor & Francis (London: Taylor & Francis, 1998).
200 Laplace’s corr[ections]. … Poggendorff 1863.: this is written on the reverse of the letter.
Please cite as “Tyndall2086,” in Ɛpsilon: The John Tyndall Collection accessed on