Probably the association of ideas was not with the flint as a fire-stone, though the fact that a piece of flint struck with a nodule of pyrites will emit a spark was not unknown. But the flint was everywhere employed for arrow and lance heads. The flashes of light, the lightning, anything that darted swiftly and struck violently, was compared to the hurtling arrow or the whizzing lance. Especially did this apply to the phenomenon of the lightning. The belief that a stone is shot from the sky with each thunderclap is shown in our word "thunderbolt," and even yet the vulgar in many countries point out certain forms of stones as derived from this source. As the refreshing rain which accompanies the thunder gust instills new life into vegetation, and covers the ground parched by summer droughts with leaves and grass, so the statement in the myth that the fragments of the flint-stone grew into fruitful vines is an obvious figure of speech which at first expressed the fertilizing effects of the summer showers. In this myth Michabo, the Light-God, was represented to the native mind as still fighting with the powers of Darkness, not now the darkness of night, but that of the heavy and gloomy clouds which roll up the sky and blind the eye of day. His weapons are the lightning and the thunderbolt, and the victory he achieves is turned to the good of the world he has created. This is still more clearly set forth in an Ojibway myth. It relates that in early days there was a mighty serpent, king of all serpents, whose home was in the Great Lakes. Increasing the waters by his magic powers, he began to flood the land, and threatened its total submergence. Then Michabo rose from his couch at the sun-rising, attacked the huge reptile and slew it by a cast of his dart. He stripped it of its skin, and clothing himself in this trophy of conquest, drove all the other serpents to the south.[1] As it is in the south that, in the country of the Ojibways, the lightning is last seen in the autumn, and as the Algonkins, both in their language and pictography, were accustomed to assimilate the lightning in its zigzag course to the sinuous motion of the serpent,[2] the meteorological character of this myth is very manifest. [Footnote 1: H.R. Schoolcraft, _Algic Researches_, Vol. i, p. 179, Vol. ii, p. 117. The word _animikig_ in Ojibway means "it thunders and lightnings;" in their myths this tribe says that the West Wind is created by Animiki, the Thunder. (Ibid. _Indian Tribes_, Vol. v, p. 420.)] [Footnote 2: When Father Buteux was among the Algonkins, in 1637, they explained to him the lightning as "a great serpent which the Manito vomits up." (_Relation de la Nouvelle France_, An. 1637, p. 53.) According to John Tanner, the symbol for the lightning in Ojibway pictography was a rattlesnake. (_Narrative_, p. 351.)]