Correspondente of the Boston Post. New Ortéane, Jan. 8, 1863. How the mighty have fallen in tvvo short years ! This city, once so gay and dasb-ing, luxurious., fashionable and attr&otive, i& gow sober ;md sad, and hungry and cold. The rich aro poor, the poor are begare; he great stórehouses are closed, the small ones do no business. Gold und silver, vvhich used to be so ubondant, are gone from sight, and in thoir placo we have a pa per ourrency vvhich an enligbtened horse would rejoot. Insteud oí a heuithy American population, speaking the language cf Webster, we have gouging Jews, dark Spaniards, treaoherous Sicilians, rat-catehing Chioamen, kirking Creóles, lazy negroes, and a spiinkling of Yankees, who, inany of them are bont on niaking fortunes, and are indifferent, if they stioceed in this, about wliich sido triuinphs In the gre:,t battlrfs now goirig on !or nalionality and ireedoin, and the continúanos of the Amanean name and perpetuation of American fatne. I sce, even in the shattured appearanees of things about, evidentes of a once superior cluss; educatod trenüeiiicii, who enj yeü book cultivatud wollijn, who uscd to be Tiappy, and cheerlul, and hospitable. Whei'eare the.se tnen and women now ? Why did they fly f'om these attractive homes - wliere, at (his seaeon of the y ear, certainly, pit asure used to lie so oarelessly " smiling at fame." There was nought in the character and trappingu of our American soklier to bring ttrrors to them. But they have one and left iheir gre;;t uiansioiis, their gor geous furniiui'e, their rich libraries, tlieir iTiueio and tlieir pictures to be the sport of slaves. No one knows - not in your section of the country, surely - vvhat sacriöcös tho Southern peopie have made; how they h'avs tnrown everything into the scale, and ofïered up all tlu'ir fortunes and their nmnhood in the wild cause in which they aro engaged. Thore are nono of the leaders of fashiou here. The laches who moulded society have moved into the Confed eracy - their husbands and sous - " in the ranks of death you wil! find them." Many merchante, to be sure, have sa' out the rebelüon with folded urms, waiting patieiitly for the sjlution. Mr. John Burnside is one of these. He is, I presume, the richest mao in Louisiamr iie ow Dj' iRinierous plantations, and his mansión on Washington avenue - with its park, as large as your nublio garden and its pictures and rnarb.o illustrations of ta.ste and weallh, and ts ever blooming Howers - is one of the loveliest horneo in America. It was i'ected for James. Ilobb, but when he Caiied it feil into tho hands of Mr Bimisido It is a pulacte, and its posBesHor a king Hu is an Inshman -and a bachelor, wilh vvays so winning, hospitalily no bountil'ul, that the mvsterv 18 he is Ht.ill u iiachelor. He is a re tired merchant ; stiil he fiuds innch 10 do to keep and save what he has, during a lile of honorable venturo, gained. Already hundreds of his negros. havo been enticèd away from his cotton and sugar fk'lds ; and the guerrillas havo dusWoyed one of his plaulations - the h'nest ona on tho abundant banfcs of the MiHsissinpi Mr. iiiinisiilo's esperi once is the oxpei ence of all tho planters in the South. Ho has too much weahh to be impoverished ; but those who bad at the begin ning of the war tbeir entile fortunes staked n landed stalen, are roined forever. Thia is a pity, for the planters had nothing (o do with biinging on the rebellion. To be suro, tbey have since been forced into it, and have epntributed liberal, y toits support, Tliis they were obliged to do. But of this moral no more. - Briug the war'to a close. Eet that be your glory, and tho glory of your paper and' your part}'. There is nothing of the anecdote order so popular in camp as storJaa aod recitals of the demeunor oí soldiers in linie of danger. There id a very good joke told of the Major of Regiment. When the steamer beariag bis regiment was coming thro'jgh the Gulf, she was signaled to stop by one oi' our gunboats. Sho refused to do so, and thereupon the bloekadev fired at her three times ; but she was miles out of range. This harmless canuonading frightened some of the men aod officers, and the Major was quite beside himself. He rusbed down into the bowels of the hhip and implored tho enginier todo something to remove bis militafy appearauce. "I will give you," he said, " .ny new uniform and twenty-five dollars lor a suit of citizeus clothes." " Whut is the matter," mut tered the engineer.' " Oh ! my dear pir, wo are pursued by the 290, and I know we .-hall be taken ; do take my uniform and the tvventv fivo dollars, and let me have a .suit of civilian's ap parel." The engineer .laughed - Ihe guoboaf faded away; the story got into the ratiks, and is now a current jwke. But these Bceues are not oommon. Thero is a queer oh ar aa ter here - a Womiin who h:ts been playing pranks on young offioers. For example, uhe went to Major Bell, and told him such a d'ik'ful story about her property - how it was seized by "the Fodaiais," and all that sort of thing, that the kindhearted M jor sut himaeif about righting her; but he discovered that she was a she joker and an impostor. On another duy she attired in the garb of a Sister of Oharitv, and appeared be-. fore one of the regimental hoi se jockey Chapl:iins, and axkod hiin to aid lier in her efi'orta to be rid of her Popeiy - He, poor soul, did what he could, and s!:e went away laughing. 8he has been visiting Cdonel John S. CLirke, the new Provost Hnrahal of the Department of Ihö Gulf, and he novv has some pbase of her afflictions d his hand. Tho only person that ever "saw through her," was Coloiiel Deming, the ucting Mayor of the city. He turnad the tables on her. The name of this female joker, or, rather, the name and title by which ehe is known to the ofEcers of the army and others, is Biigadier General Diok. Cotonel Clarke, the new Provost Marshal is destined to be Féárfully sold lie i one of those men who thinks himse'f not green, and you know how green soob persons üsüally are He is a big lellow, vvith a tmiooth tongue, and thinks himselt affablo, handsome, and at once a pain killer. There are more jeople in th is city than Brigadier Dick that will sell him. I do not touch on news matters. I leave the caTaüiity at Galveston on New Year':i Day to the reporters, together with the evento that have transpired since that time. It will not burden you vvith rebel rumors of rebel ipproachés - but I will say that it vvould not surprise me if, in the event of rebel success at Vicksburg and Por; Hiidson, N(w Orloans should be attacked. There is a srood deal of' speculation on that huad, I do assure yon. D'jvis would sacnñce the place, f' he could only drive the " Yankees" out.