Collected Works of Poe, Vol 3 by Edgar Allan Poe

must be paid, not only to the bulk taken in, but to the nature of the bulk, and whether there be a full or only a partial cargo. In most kinds of freight the stowage is accomplished by means of a screw. Thus, in a load of tobacco or flour, the whole is screwed so tightly into the hold of the vessel that the barrels or hogsheads, upon discharging, are found to be completely flattened, and take some time to regain their original shape. This screwing, however, is resorted to principally with a view of obtaining more room in the hold; for in a full load of any such commodities as flour or tobacco, there can be no danger of any shifting whatever, at least none from which inconvenience can result. There have been instances, indeed, where this method of screwing has resulted in the most lamentable consequences, arising from a cause altogether distinct from the danger attendant upon a shifting of cargo. A load of cotton, for example, tightly screwed while in certain conditions, has been known, through the expansion of its bulk, to rend a vessel asunder at sea. There can be no doubt either that the same result would ensue in the case of tobacco, while undergoing its usual course of fermentation, were it not for the interstices consequent upon the rotundity of the hogsheads.
    It is when a partial cargo is received that danger is chiefly to be apprehended from shifting, and that precautions should be always taken to guard against such misfortune. Only those who have encountered a violent gale of wind, or rather who have experienced the rolling of a vessel in a sudden calm after the gale, can form an idea of the tremendous force of the plunges, and of the consequent terrible impetus given to all loose articles in the vessel. It is then that the necessity of a cautious stowage, when there is a partial cargo, becomes obvious. When lying-to (especially with a small bead sail), a vessel which is not properly modelled in the bows is frequently thrown upon her beam-ends; this occurring even every fifteen or twenty minutes upon an average, yet without any serious consequences resulting, provided there be a proper stowage. If this, however, has not been strictly attended to, in the first of these heavy lurches the whole of the cargo tumbles over to the side of the vessel which lies upon the water, and, being thus prevented from regaining her equilibrium, as she would otherwise necessarily do, she is certain to fill in a few seconds and go down. It is not too much to say that at least one-half of the instances in which vessels have foundered in heavy gales at sea may be attributed to a shifting of cargo or of ballast.
    When a partial cargo of any kind is taken on board, the whole, after being first stowed as compactly as may be, should be covered with a layer of stout shifting-boards, extending completely across the vessel. Upon these boards strong temporary stanchions should be erected, reaching to the timbers above, and thus securing every thing in its place. In cargoes consisting of grain, or any similar matter, additional precautions are requisite. A hold filled entirely with grain upon leaving port will be found not more than three fourths full upon reaching its destination -- this, too, although the freight, when measured bushel by bushel by the consignee, will overrun by a vast deal (on account of the swelling of the grain) the quantity consigned. This result is occasioned by settling during the voyage, and is the more perceptible in proportion to the roughness of the weather experienced. If grain loosely thrown in a vessel, then, is ever so well secured by shifting-boards and stanchions, it will be liable to shift in a long passage so greatly as to bring about the most distressing calamities. To prevent these, every method should be employed before leaving port to settle the cargo as much as possible; and for this there are many contrivances, among which may be mentioned the driving of wedges into the grain. Even after all this is done,