The loss of a portion of his foot, extreme sufferings from exposure, and his great privations in the Kane expedition failed to abate Hayes's enthusiasm in Arctic exploration. Immediately on his return to the United States, in October, 1855, he advocated a second expedition, with the object of completing the survey of the north coast of Greenland and Grinnell Land, and to make explorations toward the North Pole. His strenuous efforts to excite public interest failed at first; but Hayes devoted himself to lecturing on Arctic subjects, and finally enlisted in his support most of the scientific societies of the country. The advocacy of Professors Bache and Henry, and the support of Grinnell, gave an impulse which finally resulted in the organization of an expedition, under Hayes's command, and on July 6, 1860, he left Boston on the sailing schooner United States, with a crew of fourteen. It is not needful to dwell on his outward voyage farther than to say that, in addition to the complement of dogs and stock of furs usually obtained in Greenland, Hayes there recruited dog-drivers, interpreters, and hunters. At Cape York he also added Hans Hendrik, Kane's dog-driver, who, smitten with the dusky charms of the daughter of Shang-hu, had chosen to remain with the Etah Esquimaux rather than return to Danish Greenland with the Kane retreating party in 1855. Now, five years later, he showed an equal willingness to quit his adopted tribe for expeditionary purposes. [Illustration: Hayes's Winter-Quarters.] Profiting by the experience of his predecessor, Hayes was unwilling to push a sailing vessel northward into Kane's Basin, beyond the seventy-eighth parallel, and wisely decided to establish his winter-quarters in Foulke Fiord, near Littleton Island, twenty miles to the south, and about forty miles west, of Kane's quarters. Game proved abundant both at sea and on land, pleasant relations were established with their neighbors, the Etah Esquimaux, an observatory built, and scientific observations inaugurated. Indeed everything looked most promising for the future.