Crozier knew how quickly the full onslaught of scurvy would weaken all of them. For this 25 miles to King William Land with light sledges and full teams, on full half rations for the crossing, on a runners path that had been beaten into the ice for more than a month, they had to cover a little more than eight miles a day. On the rough terrain or coastal ice of King William Land and south, that distance might be cut in half or worse. Once the scurvy began having its way with them, they might only cover a mile a day and, if the wind died, might well not be able to pole or paddle the heavy boats
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