Of surpassing interest and importance was the magnetic work done by James Clark Ross, a nephew of Sir John. Many persons do not realize that the place to which constantly points the north end of the needle of the magnetic compass is _not_ the north geographic pole. The locality to which the compass turns is, in fact, nearly fourteen hundred miles to the _south_ of the north pole. With this expedition in 1830, James Clark Ross by his many observations proved that the _north magnetic pole_, to which the needle of the compass points, was then very near Cape Adelaide, in 70 deg. 05' north latitude, 96 deg. 44' west longitude.[1] The adventures of the crew in their retreat from Boothia Land by boat and sledge are recorded in this sketch. * * * * * Captain Ross failing to free his ship from the ice the second summer, it was clear to him that the _Victory_ must be abandoned the coming spring. It was true salmon were so abundant in the lakes of Boothia that five thousand were caught in one fishing trip, which netted six tons of dressed fish, but bread and salt meat, the usual and favorite food of the crew, were so short that it had become necessary to reduce the daily issues. Fuel was so reduced that none remained save for cooking, and the deck had to be strewn with a thick coating of gravel, for warmth, before the usual covering of snow was spread over the ship. Creatures of habit, the seamen now showed signs of depression bordering on discontent if not of despair. [Illustration: Boothia Peninsula and North Somerset.] There were two routes of retreat open to Ross, one being toward the south, attractive as being warmer and possibly more ice-free. He chose, however, the way to the north, which, desolate as it might be, was known to him both as to its food supplies and also as to the chances of meeting a ship. Every year the daring Scotch whalers were fishing in Lancaster Sound, and at Fury Beach, on the line by which he would travel, were large quantities of food, boats, and other needful articles--landed from the wreck of Parry's ship _Fury_ in 1825. Ross did not plan his abandonment of the _Victory_ any too early, for in January Seaman Dixon died and his mate Buck lost his eyesight from epilepsy. Signs of the dreaded arctic horror, scurvy, were not lacking, as the foolish seamen were averse to the antiscorbutic lime juice and refused to take the fresh salmon-oil ordered by the doctor. Ross was also affected, his old wounds breaking out afresh, reminders of the day when as a lieutenant he had aided in cutting out a Spanish ship under the batteries of Bilbao.