But this extraordinary cetaceous creature could transport itself from one place to another with surprising velocity; as, in an interval of three days, the Governor Higginson and the Columbus had observed it at two different points of the chart, separated by a distance of more than seven hundred nautical leagues. Fifteen days later, two thousand miles farther off, the Helvetia, of the Compagnie-Nationale, and the Shannon, of the Royal Mail Steamship Company, sailing to windward in that portion of the Atlantic lying between the United States and Europe, respectively signalled the monster to each other in 42° 15′ N. lat. and 60° 35′ W. long. In these simultaneous observations they thought themselves justified in estimating the minimum length of the mammal at more than three hundred and fifty feet, as the Shannon and Helvetia were of smaller dimensions than it, though they measured three hundred feet over all. Now the largest whales, those which frequent those parts of the sea round the Aleutian, Kulammak, and Umgullich islands, have never exceeded the length of sixty yards, if they attain that. These reports arriving one after the other, with fresh observations made on board the transatlantic ship Pereire, a collision which occurred between the Etna of the Inman line and the monster, a procès verbal directed by the officers of the French frigate Normandie, a very accurate survey made by the staff of Commodore Fitz-James on board the Lord Clyde, greatly influenced public opinion.