Note 220 — XVI THE MARVELS OF THE WATERS ABOUT GREENLAND: MONSTERS, SEALS, AND WALRUSES

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.