When on the morning of the 9th August the _Fraser_ and _Express_ sailed for the point higher up the river where their cargo was lying, the _Vega_ and the _Lena_ were also ready to sail. I, however, permitted the vessels to remain at Port Dickson a day longer, in order to allow Lieutenant Bove to finish his survey, and for the purpose of determining astronomically, if possible, the position of this important place. In consequence of a continuous fog, however, I had as little opportunity of doing so on this occasion as during the voyage of 1875, which serves to show of what sort the weather is during summer at the place where the warm water of the Yenisej is poured into the Arctic Ocean. It was thus not until the morning of the 10th August that the _Vega_ and the _Lena_ weighed anchor in order to continue their voyage. The course was shaped for the most westerly of the islands, which old maps place off the estuary-bay of the Pjaesina, and name Kammenni Ostrova (Stone Islands), a name which seems to indicate that in their natural state they correspond to the rocky islands about Port Dickson. The sky was hid by mist, the temperature of the air rose to +10.4 deg. C.; that of the water was at first +10 deg., afterwards +8 deg.; its salinity at the surface of the sea was inconsiderable. No ice was seen during the course of the day. Favoured by a fresh breeze from the south-east, the _Vega_ could thus begin her voyage with all sail set. Small rocky islands, which are not to be found on the chart, soon reminded us of the untrustworthiness of the maps. This, together with the prevailing fog, compelled Captain Palander to sail forward with great caution, keeping a good outlook and sounding constantly. Warm weather and an open sea were also favourable for the next day's voyage. But the fog now became so dense, that the _Vega_ had to lie-to in the morning at one of the many small islands which we still met with on our way.