miles each way,) and might be performed on sledges, drawn by dogs or reindeer, or even on foot. Foot travellers would require to draw the apparatus and provisions, necessary for the undertaking, on sledges by hand, and in this way, with good dispatch, the journey would occupy at least two months; but, with the assistance of dogs, it might, probably, be accomplished in a little less time. With favourable winds, great advantage might be derived from sails set upon the sledges, which sails, when the travellers were at rest, would serve for the erection of tents. Small vacancies in the ice would not prevent the journey, as the sledges might be adapted so as to answer the purpose of boats, nor would the usual unevenness of the ice, nor the depth or softness of the snow, be an insurmountable difficulty, as journeys of nearly equal length, and under similar inconveniences, have been accomplished. Among many similar accounts, there is one related by Muller, in his “Voyages from Asia to America,” of a Cossack having actually performed a journey of about eight hundred miles in a sledge, drawn by dogs, across a surface of ice lying to the northward of the Russian dominions, which sufficiently establishes the practicability of a journey across the ice to the Pole. Alexei Markoff, a Cossack, was sent to explore the Frozen Ocean, in the summer of the year 1714, by order of the Russian government, but finding the sea so crowded with ice that he was unable to make any progress in discovery, he formed the design of travelling in sledges, during the winter or spring of the year, over the ice, which might then be expected to be firm and compact. Accordingly, he prepared several of the country sledges, drawn by dogs, and accompanied by eight persons, he set out on the 10th of March from the mouth of the Jana, in latitude 70° 30′, and longitude about 138° east. He proceeded for seven days northward, as fast as his dogs could draw, which, under favourable circumstances, is eighty or one hundred versts a day, until his progress was impeded, about the 78th degree of latitude, by the ice elevated into prodigious mountains. This prevented his further advance; at the same time, falling short of provisions for his dogs, his return was effected with difficulty; several of his dogs died for want, and were given to the rest for their support. On the 3rd of April, he arrived at Ust-Jauskoe Simowie, the place from whence he started, after an absence of twenty-four days, during which time he appears to have travelled about eight hundred miles. The journey of Markoff was nearly equal in extent to the projected journey to the Pole, and there appears no very great reason why a person equally adventurous with Markoff, and better provided, might not in a similar manner reach the Pole.