many other ways with his valuable advice; to Professor Geelmuyden, who undertook the supervision of the astronomical instruments; to Dr. Neumeyer, of Hamburg, who took charge of the magnetic equipment; and to Professor Otto Petterson, of Stockholm, and Mr. Thornöe, of Christiania, both of whom superintended the hydrographic department. Of no less importance were the physiologico-medicinal preparations, to which Professor Torup devoted particular care. As it might be of the utmost importance in several contingencies to have good sledge-dogs, I applied to my friend, Baron Edward von Toll, of St. Petersburg, and asked him whether it was possible to procure serviceable animals from Siberia. [16] With great courtesy Von Toll replied that he thought he himself could arrange this for me, as he was just on the point of undertaking his second scientific expedition to Siberia and the New Siberian Islands. He proposed to send the dogs to Khabarova, on Yugor Strait. On his journey through Tiumen in January, 1893, by the help of an English merchant named Wardroper, who resided there, he engaged Alexander Ivanovitch Trontheim to undertake the purchase of thirty Ostiak dogs and their conveyance to Yugor Strait. But Von Toll was not content with this. Mr. Nikolai Kelch having offered to bear the expense, my friend procured the East Siberian dogs, which are acknowledged to be better draught dogs than those of West Siberia (Ostiak dogs), and Johan Torgersen, a Norwegian, undertook to deliver them at the mouth of the Olenek, where it was arranged that we should touch. Von Toll, moreover, thought it would be important to establish some depots of provisions on the New Siberian Islands, in case the Fram should meet with disaster and the expedition should be obliged to return home that way. On Von Toll's mentioning this, Kelch at once expressed himself willing to bear the cost, as he wished us in that event to meet with Siberian hospitality even on the New Siberian Islands. As it was difficult to find trustworthy agents to carry out a task involving so much responsibility, Von Toll determined to establish the depots himself, and in May, 1893, he set out on an adventurous and highly interesting journey from the mainland over the ice to the New Siberian Islands, where, besides laying down three depots for us, [17] he made some very important geological researches.