ch. xx] Russian Arctic Discoveries 181 
While Anjou was surveying these islands, his friend 
Baron Wrangell was also occupied in exploration and 
research with his headquarters at Nijni Kolymsk. He 
made four sledge journeys over the Polar Sea from 1820 
North-western Siberia. 
to 1823, in the narti or dog sledges already mentioned. 
He considered March to be the best time of the year for 
travelling, because it is then easier work for the dogs. 
The dogs were fed on frozen herrings. The men wore 
