From the above data, I would say, never make duck-guns above seven-eighths in the bore, if you wish them to kill at a great distance; and not less than fifteen or sixteen pounds weight, and full four feet long; because then you can generate strength sufficient. Therefore, instead of the large stanchion-guns being one hundred pounds weight, they should, strictly speaking, be two hundred, and so on. In proof of this I may just mention that, upon repeated experiments, I have ascertained that a double stanchion-gun, with each barrel of the same bore, weight, and length, as a single gun, will kill further than the latter; simply owing to the advantage of the greater weight of the double gun. I have made observations, when trying moderate-sized and shoulder duck-guns on that fine level piece of sand before spoken of, and by tracing the grazing of the shots I have been enabled to pick them up. The large shot from the duck-gun, mostly No. 2, I found scarcely 400 yards from the spot where she was fired; the small shot, five and six, from a fourteen bore, were repeatedly picked up at 350 yards: thus showing that the large gun had not much advantage; but yet making probable many assertions made of killing at seventy, eighty, and sometimes a hundred yards, with a common-sized gun. By this it appears possible; for shot that will fly that distance must kill, if it hit during its flight through the first quarter of such a range; but then, at a single bird, above fifty-five or sixty yards, it is always twenty to one against hitting the object at all; as the pellets begin to separate rapidly at that distance, though their force is still sufficient, and in large flocks is apt to do execution.