The explorers soon preferred to reach the islands by sledge journeys on the ice, and thus at last discovered the whole of the large group of islands which is named New Siberia. The islands were often visited by hunters for the purpose of collecting mammoth tusks, of which great masses, together with the bones of the mammoth, rhinoceros, sheep, ox, horse, etc., are found imbedded in the beds of clay and sand here. Afterwards they were completely surveyed during Hedenström's expeditions, fitted out by Count Rumanzov, Chancellor of the Russian Empire, in the years 1809-1811, and during Lieutenant Anjou's in 1823. Hedenström's expeditions were carried out by travelling with dog-sledges on the ice, before it broke, to the islands, passing the summer there, and returning in autumn, when the sea was again covered with ice. As the question relates to the possibility of navigating this sea, these expeditions, carried out in a very praiseworthy way, might be expected to have great interest, especially through observations from land, concerning the state of the ice in autumn; but in the short account of Hedenström's expeditions which is inserted in Wrangel's _Travels_, pp. 99-119, the only source accessible to me in this respect, there is not a single word on this point.[12] Information on this subject, so important for our expedition, has, however, by Mr. Sibiriakoff's care, been received from inhabitants of North Siberia, who earn their living by collecting mammoths' tusks on the group of islands in question. By these accounts the sea between the north coast of Asia and the islands of New Siberia, is every year pretty free of ice.
A very remarkable discovery was made in 1811 by a member of Hedenström's expedition, the Yakoutsk townsman Sannikov; for he found, on the west coast of the island Katelnoj, remains of a roughly-timbered winter habitation, in the neighbourhood of the wreck of a vessel, differing completely in build from those which are common in Siberia. Partly from this, partly from a number of tools which lay scattered on the beach, Sannikov drew the conclusion, that a hunter from Spitzbergen or Novaya Zemlya had been driven thither by the wind, and had lived there for a season with his crew. Unfortunately the inscription on a monumental cross in the neighbourhood of the hut was not translated.