The belief that mermaids lived in the Arctic waters was one that was long held by European navigators. Henry Hudson reports that on his voyage into the Arctic in 1608 (June 15) some of his men saw a mermaid. “This morning one of our companie looking over boord saw a mermaid, and calling up some of the companie to see her, one more came up and by that time shee was come close to the ships side, looking earnestly on the men: a little after a sea came and overturned her: from the navill upward her backe and breasts were like a womans, as they say that saw her; her body as big as one of us; her skin very white, and long haire hanging downe behind of colour blacke: in her going downe they saw her tayle, which was like the tayle of a porposse and speckled like a macrell.” Asher, _Henry Hudson_, 28. Now there is still another marvel in the seas of Greenland, the facts of which I do not know precisely. It is called “sea hedges,”[220] and it has the appearance as if all the waves and tempests of the ocean have been collected into three heaps, out of which three billows are formed. These hedge in the entire sea, so that no opening can be seen anywhere; they are higher than lofty mountains and resemble steep, overhanging cliffs. In a few cases only have the men been known to escape who were upon the seas when such a thing occurred. But the stories of these happenings must have arisen from the fact that God has always preserved some of those who have been placed in these perils, and their accounts have afterwards spread abroad, passing from man to man. It may be that the tales are told as the first ones related them, or the stories may have grown larger or shrunk somewhat. Consequently, we have to speak cautiously about this matter, for of late we have met but very few who have escaped this peril and are able to give us tidings about it. Footnote 220: The Danish scientist I. Japetus S. Steenstrup has shown in his paper “Hvad er Kongespeilets Havgjerdinger?” that this phenomenon is produced by sea quakes. The three huge waves did not form a triangle as the author’s account would seem to imply; they were three successive waves rolling in toward the shore. Steenstrup argues chiefly from the behavior of sea quakes in modern times. _Aarböger for nordisk Oldkyndighed og Historie_, 1871.