I was told by the late Mr. Thomas Thomson--a gentleman to whom we are all indebted for promoting and systematising our studies--that a miscellaneous, but yet in some points valuable collection of old vellum manuscripts was left, at the beginning of the present century, by a poor peripatetic Scottish tailor, who could not read one word of the old black letter documents which he spent his life and his purse in collecting. Being a visionary claimant to one of the dormant Scottish peerages, he buoyed himself up with the bright hope that some clever lawyer would yet find undoubted proofs of his claims in some of the written parchments which he might procure. Sir Robert Cotton is said to have discovered one of the original vellum copies of the Magna Charta in the shop of another tailor, who, holding it in his hand, was preparing to cut up this charter of the liberties of England into tape for measuring some of England's sons for coats and trousers. The missing manuscript of the History of Scotland, from the Restoration to 1681, which was written by Sir George Mackenzie, the King's Advocate, was rescued from a mass of old paper that had been sold for shop purposes to a grocer in Edinburgh. Some fragments of the Privy Council Records of Scotland--now preserved in the General Register House--were bought among waste snuff-paper.[15] Occasionally even a very small preserved fragment of an ancient document has proved of importance. Mr. Robertson informs me that, in editing the old Canons of the Scottish Church, he has derived considerable service from a single leaf of a contemporary record of the Canons of the sixteenth century, which had been used and preserved in the old binding of a book. This single leaf is the only bit of manuscript of the Scotch sixteenth century Canons that is known to exist in Scotland. In 1794 eight official volumes of the Scottish Secretary of State's Register of Seisins were discovered in a bookseller's shop in Edinburgh, after they had remained concealed for more than 185 years. Among the great mass of interesting Scottish manuscripts preserved in our General Register House, there is one dated Arbroath,--April 1320;--perhaps the noblest Scottish document of that era. It is the official duplicate of a letter of remonstrance addressed to Pope John XXII. by the Barons, Freeholders, and Community of Scotland, in which these doughty Scotsmen declare, that so long as a hundred of them remain alive, they will never submit to the dominion of England. This venerable record and precious declaration of Scottish independence, written on a sheet of vellum, and authenticated by the dependant seals of its patriotic authors, was detected by a deceased Scottish nobleman in a most precarious situation; for he discovered it ruthlessly stuck into the fire-place of his charter-room. Contested points in Scottish Archaeology and history have been occasionally settled by manuscript discoveries that were perfectly accidental.