From references to the geographical divisions of Russia, as well as other internal evidence, this version of the legend is believed to have been written not later than the twelfth century. The tradition, however, is doubtless based on a much older belief, so that we cannot err in assuming that at the earliest period of intercourse between Scotland and Norway, sufficiently frequent to assimilate the popular superstition of the two countries, the Stone Period was only known as a state of society so essentially different from every historic tradition with which the people were familiar, that they referred its weapons and implements to the same invisible sprites by whose agency they were wont to account for all incomprehensible or superhuman occurrences. The Elf-arrow was almost universally esteemed throughout Scotland as an amulet or charm, equally effectual against the malice of Elfin sprites, and the spells of witchcraft. Dipt in the water which cattle were to drink, it was supposed to be the most effectual cure for their diseases, while sewed in the dress, it was no less available for the protection of the human race; and it is still occasionally to be met with perforated or set in gold or silver, for wearing as an amulet. Like other weapons of Elfin artillery, it was supposed to retain its influence at the will of the possessor, and thus became the most effective talisman against elvish malice, witchcraft, or the evil-eye, when in the hands of man. Such traditional myths of vulgar superstition are not without their value, however humble their direct origin may be. They are frequently only distorted images of important truths, and we shall find more than one occasion to recur to them for aid in reuniting the broken skein of primitive history. To follow out the simile, it may sometimes be said of them with truth, that where all other lines of connexion with the past are broken, these are only ravelled and confused.