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 to push through the ice to the mysterious unexplored Wrangell Land. We hope to return to San Francisco by October or November, but may possibly be compelled to winter in the Arctic somewhere.

De Long, in a letter to his wife, had written that his plan was to proceed north by the eastern coast of Wrangell Land, touching first at Herald Island to build a cairn and leave news of the Jeannette's progress. Believing that Wrangell Land extended northward toward the Pole, he proposed to leave similar records along its eastern coast, under cairns, at intervals of twenty-five miles. These known intentions of De Long show why it was one of the foremost objects of the Corwin expedition to reach what Muir called "the mysterious unexplored Wrangell Land."

How keenly Muir appreciated the possibilities of science and adventure in the exploration of this unknown Arctic land may be seen in the fourteenth chapter of this volume. Up to this time nothing was actually known about Wrangell Land except its existence. The first European who reported its discovery was Captain Kellett of H.M.S. Herald. He saw it in 1849 when he discovered Herald Island, which was named after his vessel. By right of discovery Kellett's name should have been