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London, October 20th 1841 Dear Sir, I have often promised myself the pleasure there would have been in performance of the duty you so clearly laid me under by the very friendly letters you voluntarily gave me when I left N. York for London. That duty I intended to have discharged long ere this in giving you at last some account of the success which my labours have met with in this country. During the last six months I have been so almost entirely enveloped and enslaved in filling out my work with near 400 engravings that I have had no time for correspondence. And just at the completion of it, I have been mortified beyond expression, as well as incensed, by the information which a subsequent traveler has given you of Chi Red Pipe Stone