GRANT, James Augustus (1827-1892). Autograph letter signed to [Francis] Galton, 29 Half Moon Street [London], 19 July 1863, 4 pages, 8vo (a few tiny spots, last page slightly browned); and a portrait photograph of Grant in uniform, sepia, by Mayall, 142 x100 mm, signed on the mount, and with autograph inscription signed to 'McSilver' on the verso, 15 March 1887; and an autograph greeting signed to Malin (?), ½ page, 8vo. Writing shortly after he and Speke had returned to England, Grant writes about meteorological readings which he will send. 'While in the Lake district I was laid up for five months & could not well observe dews etc besides which I did not know that any thing would be called for beyond the actual reading of them, which Speke asked me to take. The max[imum] one he had taken on with him & during the march no rain could be accurately measured ... The sky had quite as much cloud as sky in it & the nights were beautifully clear for observing (Speke's astronomical obs[ervation]s would speak for certain on this point)'. Grant adds further details, and will send Casella's brass rain measure, but sees no difficulty in the data. The information was presumably for Francis Galton's Meteorologica, a work for which he coined the term 'anticyclones'. Galton (1822-1911), a cousin of Charles Darwin and the founder of eugenics, travelled extensively in Egypt, Syria, and tropical Africa. In 1863 he was secretary of the British Association. Louis Casella was a well known London instrument maker.