"The navigators of the sixteenth and seventeenth centuries have related many wonderful stories about the magic of the _Finns_ or _Finno Lappes_, who sold wind contained in a cord with three knots. If the first were untied, the wind became favourable, if the second, still more so, but, if the third were loosed, a tempest was the inevitable consequence."[583] The selling of wind knots was ascribed not only to the Lapps and Finns, but to the inhabitants of Greenland also.[584] "The northern shipmasters are such dupes to the delusions of these impostors that they often purchase of them a magic cord which contains a number of knots, by opening of which, according to the magician's directions, they expect to gain any wind they want."[585] "They [Lapland witches] further confessed, that while they fastened three knots on a linen towel in the name of the devil, and had spit on them, &c., they called the name of him they doomed to destruction." They also claimed that, "by some fatal contrivance they could bring on men disorders," ... as "by spitting three times on a knife and anointing the victims with that spittle."[586] Scheffer describes the Laplanders as having a cord tied with knots for the raising of the wind; Brand says the same of the Finlanders, of Norway, of the priestesses of the island of Sena, on the coast of Gaul, in the time of the Emperor Claudius, the "witches" of the Isle of Man, etc.[587] Macbeth, speaking to the witches, says: Though you untie the winds, and let them fight Against the churches; though the yesty waves Confound and swallow navigation up.[588] ROSARIES AND OTHER MNEMONIC CORDS. The rosary being confessedly an aid to memory, it will be proper to include it in a chapter descriptive of the different forms of mnemonic cords which have been noticed in various parts of the world. The use of the rosary is not confined to Roman Catholics; it is in service among Mahometans, Tibetans, and Persians.[589] Picart mentions "chaplets" among the Chinese and Japanese which very strongly suggest the izze-kloth.[590] Father Grébillon, in his account of Tartary, alludes several times to the importance attached by the Chinese and Tartars to the privilege of being allowed to touch the "string of beads" worn by certain Lamas met on the journey, which corresponds very closely to the rosaries of the Roman Catholics.[591] "Mr. Astle informs us that the first Chinese letters were knots on cords."[592]