London: Smith, Elder, and Co., Cornhill, 1849. First Edition. Full Leather. Very Good. Large 8vo. Handsomely bound by A Staderini of Rome in full brown morocco, upper and lower panels framed with thin black morocco inlay and gilt, gilt paneled spine, top edge gilt, brown coated endpapers, pastedowns bordered with gilt-rules, ribbon bookmark. Pp. viii, 205, 14 black & white plates with tissue guards, coloured plan of Exeter Cathedral, tipped-in Errata slip. Tipped-in at the half-title is a two-page holograph letter from John Ruskin to his publisher, George Murray Smith of Smith, Elder, dated April 23, 1849, prior to the May 1849 first publication. The entire letter is with regard to the publication of "The Seven Lamps ..." Ruskin expresses his disappointment with the proof for "Lamp of Beauty": "I intended it to be far different, and I hoped it would have been creditable to the book and to you. I am sadly disappointed in it, but I fear it must go as it is ..." He also discusses…