There was great want of tents, for material to make them was scarce 104 in New England. Old sails were often used instead, being stretched over poles,--perhaps after the fashion of a Sioux teepee. When these could not be had, the men built huts of sods, with roofs of spruce-boughs overlapping like a thatch; for at that early season, bark would not peel from the trees. The landing of guns, munitions, and stores was a formidable task, consuming many days and destroying many boats, as happened again when Amherst landed his cannon at this same place. Large flat boats, brought from Boston, were used for the purpose, and the loads were carried ashore on the heads of the men, wading through ice-cold surf to the waist, after which, having no change of clothing, they slept on the ground through the chill and foggy nights, reckless of future rheumatisms.[107] A worse task was before them. The cannon were to be dragged over the marsh to Green Hill, a spur of the line of rough heights that half encircled the town and harbor. Here the first battery was to be planted; and from this point other guns were to be dragged onward to more advanced stations,--a distance in all of more than two miles, thought by the French to be impassable. So, in fact, it seemed; for at the first attempt, the wheels of the cannon sank to the hubs in mud 105 and moss, then the carriage, and finally the piece itself slowly disappeared. Lieutenant-Colonel Meserve, of the New Hampshire regiment, a ship-builder by trade, presently overcame the difficulty. By his direction sledges of timber were made, sixteen feet long and five feet wide; a cannon was placed on each of these, and it was then dragged over the marsh by a team of two hundred men, harnessed with rope-traces and breast-straps, and wading to the knees. Horses or oxen would have foundered in the mire. The way had often to be changed, as the mossy surface was soon churned into a hopeless slough along the line of march. The work could be done only at night or in thick fog, the men being completely exposed to the cannon of the town. Thirteen years after, when General Amherst besieged Louisbourg again, he dragged his cannon to the same hill over the same marsh; but having at his command, instead of four thousand militiamen, eleven thousand British regulars, with all appliances and means to boot, he made a road, with prodigious labor, through the mire, and protected it from the French shot by an epaulement, or lateral earthwork.[108]