Mark Twain, we noted in “Twain, the Patent Poet” (June/July, 1978), dabbled in the mysteries of invention from time to time, even going so far as to take out several patents. The only one of these that ever came to much was his self-pasting scrapbook, a gimmick patented in 1873, manufactured by the Slote & Woodman Company, and advertised as a sovereign remedy for the “usual and well-known annoyances of paste, mucilage, and sticky fingers, with all their accompanying evils.…” Twain himself was not above doing a little huckstering for the product, though a close reading of the “letter” in the advertising leaflet shown here will reveal that his sales pitch was at least as raucous as it was persuasive.