Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor. Secretary of the Royal Society Transaction A: Volume. The Ayrton and Mather paper sent to press today, this brings the [Philosophical] Transactions A to between 500 and 600 pages and Harrison proposes closing the volume. Smith and Lowry's paper is still outstanding, the first proof being now with the authors, it is a big paper of nine sheets. Harrison asks if it is worthwhile keeping the volume open for the sake of having all the papers together or whether to close without waiting. 20 January 1908