"His failure to keep his light burning, especially in time of danger, may cause the wreck of vessels looking for it, and result in the loss of much property and many lives. "Keepers are trained to consider the care of the light and the light-house property their paramount duty, beyond any personal consideration; and the _esprit de corps_ is such that instances have happened where the keepers on duty have, as in the case of the first light on Minot's Ledge, gone down with their light-house and died at their post; others, where the keeper has saved his lens, letting his family shift for themselves; and there are repeated instances where the keeper has saved his light-house property and lost his own. "An instance of heroism is that of the keepers of Sharp's Island light-house, in Chesapeake Bay. It was lifted from its foundations, thrown over on its side, and carried away by ice early in February, 1881. The keeper and his assistant clung to the fallen house, and, although one of their boats remained uninjured, they were adrift in the bay sixteen and a half hours without fire or food, always in imminent danger, as the heavy floating ice often piled up against and threatened to swamp the house. It grounded, however, on an island shortly after midnight, at high tide, and was full of water. "Being satisfied that it would not float off again, the two keepers went ashore in their boat, and when the tide had fallen they returned, saved and took to the shore the lens, its pedestal, the oil, and library, much damaged by water, and even the empty oil-cans, and then reported the facts through their inspector to the Board. "Meantime the keepers of another light-house, fearing the ice, had deserted their post, and gone on shore. The fact that no vessels could have needed their lights while the ice remained unbroken, and that they returned to their post when the danger had passed, did not avail them. So soon as the fact of their desertion was determined they were dismissed the service, and the two keepers who had spent those terrible hours afloat in Sharp's Island light-house, and then saved its apparatus, were highly complimented by a letter direct from the Board itself, and then were appointed to the deserters' places. "The appointment of light-house keepers is restricted to persons between the ages of eighteen and fifty, who can read, write, and keep accounts, are able to do the requisite manual labor, to pull and sail a boat, and have enough mechanical ability to make the necessary minor repairs about the premises, and keep them painted, whitewashed, and in order. After three months of service, the appointee is examined by an inspector, who, if he finds that he has the qualities needed at that especial station, certifies that fact to the Light-House Board, when, upon its approval, the full appointment is issued by the Treasury Department.