Letter, from Basil Hall to Sir John Herschel, dated at Galashiels Autograph letter signed by sender. Is pleased to hear the Herschels are contemplating their return but regrets it will not be via Rio. J. D. Forbes is progressing well, may be in danger of overwork. Thomas Henderson too is doing good work at the Observatory. Gives results of lunar eclipses of Oct. 1837. 13 December 1837