The next point to be observed is the mention of "self-sown wheat-fields."[212] This is not only an important ear-mark of truth in the narrative, but it helps us somewhat further in determining the position of Vinland. The "self-sown" cereal, which these Icelanders called "wheat," was in all probability what the English settlers six hundred years afterward called "corn," in each case applying to a new and nameless thing the most serviceable name at hand. In England "corn" means either wheat, barley, rye, and oats collectively, or more specifically wheat; in Scotland it generally means oats; in America it means maize, the "Indian corn," the cereal peculiar to the western hemisphere. The beautiful waving plant, with its exquisitely tasselled ears, which was one of the first things to attract Champlain's attention, could not have escaped the notice of such keen observers as we are beginning to find Leif and Thorfinn to have been. A cereal like this, requiring so little cultivation that without much latitude of speech it might be described as growing wild, would be interesting to Europeans visiting the American coast; but it would hardly occur to European fancy to invent such a thing. The mention of it is therefore a very significant ear-mark of the truth of the narrative. As regards the position of Vinland, the presence of maize seems to indicate a somewhat lower latitude than Nova Scotia. Maize requires intensely hot summers, and even under the most careful European cultivation does not flourish north of the Alps. In the sixteenth century its northern-most limit on the American coast seems to have been at the mouth of the Kennebec (44 deg.), though farther inland it was found by Cartier at Hochelaga, on the site of Montreal (45 deg. 30'). A presumption is thus raised in favour of the opinion that Vinland was not farther north than Massachusetts Bay.[213] [Footnote 212: {"Sjalfsana hveitiakra" } { } Rafn, p. 147. { Self-sown wheat-acres }] [Footnote 213: Dr. Storm makes perhaps too much of this presumption. He treats it as decisive against his own opinion that Vinland was the southern coast of Nova Scotia, and accordingly he tries to prove that the self-sown corn was not maize, but "wild rice" (_Zizania aquatica_). _Memoires_, etc., p. 356. But his argument is weakened by excess of ingenuity.] [Sidenote: Winter weather in Vinland.]