From a perusal of the mere dry details of their various courses in this part of their voyage, which are nearly all that is recorded in their journal, no idea could be formed of the difficulties they had to contend with, or the amount of labour actually performed. It is only when their track is laid down on the map,—as it has been, most carefully and with all possible accuracy, by Mr. Augustus Petermann,—that their enormous exertions become apparent. The result is really astonishing. Their voyage from Cape Nassau to the Orange islands and back occupied them from the 10th of July till the 3rd of August, being twenty-five days. During this period, Barents put his ship about eighty-one times, and sailed 1,546 geographical miles, according to the distances noted in the journal; to which, however, must be added the courses sailed along the coast, and also those which in some instances have been omitted to be specified, so that it may be reasonably assumed that the entire distance gone over was not much (if anything) short of 1,700 miles. This is equal to the distance from the Thames to the northern extremity of Spitzbergen, or from Cape Nassau to Cape Yakan, not far from Bering’s Strait. And all this was performed in a vessel of one hundred tons’ burthen, accompanied by a fishing smack! One remarkable fact must not be omitted to be mentioned. On laying down Barents’s track from the bearings and distances given in his journal, from the 10th to the 19th of July, being the interval between his passing Cape Nassau, and being driven back again to that point,—during which period he tacked about in numerous directions, and sailed more than six hundred miles,—Mr. Petermann found it to agree so accurately, that its termination fell precisely upon Cape Nassau, without any difference whatever. This extreme precision can hardly be regarded as anything but a singular coincidence. Nevertheless, when viewed in connexion with Barents’s other tracks, and with his observations generally, as tested by the recent explorations of Lütke and other modern navigators, it must still remain a striking proof of the wonderful ability and accuracy of that extraordinary man.