The provisions consisted of five cases of pemmican, weighing about four hundred and fifty pounds; they counted one pound of pemmican for each man and each dog; there were seven dogs including Dick, and four men. They also took twelve gallons of spirits of wine--that is to say, about one hundred fifty pounds weight--a sufficient quantity of tea and biscuit, a portable kitchen with plenty of wicks, oakum, powder, ammunition, and two double-barrelled guns. They also used Captain Parry's invention of indiarubber belts, in which the warmth of the body and the movement of walking keeps coffee, tea, and water in a liquid state. Johnson was very careful about the snow-shoes; they are a sort of wooden patten, fastened on with leather straps; when the ground was quite hard and frozen they could be replaced by buckskin moccasins; each traveller had two pairs of both. These preparations were important, for any detail omitted might occasion the loss of an expedition; they took four whole days. Each day at noon Hatteras took care to set the position of his ship; they had ceased to drift; he was obliged to be certain in order to get back. He next set about choosing the men he should take with him; some of them were not fit either to take or leave, but the captain decided to take none but sure companions, as the common safety depended upon the success of the excursion. Shandon was, therefore, excluded, which he did not seem to regret. James Wall was ill in bed. The state of the sick got no worse, however, and as the only thing to do for them was to rub them with lime-juice, and give them doses of it, the doctor was not obliged to stop, and he made one of the travellers. Johnson very much wished to accompany the captain in his perilous enterprise, but Hatteras took him aside, and said, in an affectionate tone: "Johnson, I have confidence in you alone. You are the only officer in whose hands I can leave my ship. I must know that you are there to overlook Shandon and the others. They are kept prisoners here by the winter, but I believe them capable of anything. You will be furnished with my formal instructions, which, in case of need, will give you the command. You will take my place entirely. Our absence will last four or five weeks at the most. I shall not be anxious, knowing you are where I cannot be. You must have wood, Johnson, I know, but, as far as possible, spare my poor ship. Do you understand me, Johnson?" "Yes, sir," answered the old sailor, "I'll stop if you wish." "Thank you," said Hatteras, shaking his boatswain's hand; "and if we don't come back, wait for the next breaking-up time, and try to push forward towards the Pole. But if the others won't go, don't mind us, and take the _Forward_ back to England." "Are those your last commands, captain?" "Yes, my express commands," answered Hatteras. "Very well, sir, they shall be carried out," said Johnson simply.