Correspondence and notes, written in 1862, on G.G. Stokes' article 'On the theories of the internal friction of fluids in motion, and of the equilibrium and motion of elastic solids', read to the Cambridge Philosophical Society on 14 April 1845. The volume contains pages 241-414 of the Society's Transactions, vol. VIII, part III (Cambridge University Press, 1847), of which Stokes' article forms pages 287-319. The letters and notes are inserted into the volume next to the article, sections of which have been annotated with a French translation. The volume includes a second article by Stokes, 'Supplement to a memoir on some cases of fluid motion' (pp. 409-414), which was read to the Society on 3 November 1846.