Letter from John Welsh, 3 Woodland Terrace, Falmouth to Edward Sabine Welsh is returning the ‘proof’ to Sabine, and discusses a few points for his ‘consideration’. Discussion regarding Mr Fox’s instruments taking observations far east and far west. Reference to Dr [Humphrey] Lloyd’s method applied to Mr Fox’s circle. Welsh has ‘cut up’ appendix three and discusses his reasons for this. Welsh suggests a reference to Lloyd’s method in the introduction. 31 January 1859