Copy letter from Herbert Rix, to Rev Robert Harley, Fellow of the Royal Society Rix explains that they print 1500 copies of 'Proceedings of the Royal Society' exclusive of those required by authors. On the copies required they like to give a reference, as Harley will observe in the bottom left hand corner of Cayley's portrait. As a consequence, they would like to have a proof copy for that purpose before the 1500 are printed. As the obituary notice might be published at any time, the sooner the portraits are ready the sooner the publication will appear. 28 January 1896