SUGAX A1?I> P0STA&8 Orleans—Jackson's victory over the British, Jan nary 8, 1815. war had ended, the two nations wel'e at }>eace, but the news had not yet reached New Orleans. If we had had the cable telegraph in those days, this blood would not have been spilt, those lives would not have been wasted; and better still, Jackson would probably never have been president. We have gotten over the hai ms done ns by the war of 1812, but not over some of those done us by Jackson's presidency. The Warmouth plantation covers a vast deal of ground, and the hospitality of the Warmoutli mansion is graduated to the same large scale. We saw steam-ploughs at woik, here, for the first time. The traction engine travels about on its own wheels, till it reaches the required spot; then it stands still and by means of a wire rope pulL? the huge plough toward it&elf two or three hundred yards across the field, between the rows of cane. TLe thing cuts down into the black mould a foot and a half deep. The plough looks like a fore-and- aft brace of a Hudson river steamer, inverted. Wlien the negro steersman sits on one end of it, that end tilts down near the ground, while the other sticks up high in air. This great see-saw goes rolling and pitching like a ship at sea, and it is not every circus rider that could stay on it. The plantation contains two thousand six hundred acres; six hundred and fifty are in cane ; and there is a fruitful orange grove of five thousand trees. The cane is cultivated after a modern and intricate scientific fashion, too elaborate and complex for me to attempt to describe; but it lost j$40,QGQ last year. I forget the other details. However, this year's crop will reach ten or twelve hundred tons of sugar, consequently last year's loss will not matter. These troublesome and expensive scientific methods achieve a yield of a ton and a frplf and from that to two tons, to the acre ; which, is three or four times what the yield of an acre was in my time, The drainage-ditches "were everywhere alive with little crabs— * fiddlers,' One saw them scampering sidewise in every direction whenever they heard a disturbing noise. Expensive pests, these crabs ; for they bore into the levees, and ruin them. The great sugar-house was a wilderness of tubs and tanks and vats and filters, pumps, pipes, and machinery. Tbe process of mabmg