New York, Nov. 25. The steamship Roanoko, from New Orleans the lölh and Havana the 20th, hiis arrived. Amone lier passenger are General Arnold and staff. en route to Boston. - Gen. Aruold is sufíeriug uader a paralytic shock. Gov. Shipley has issued aproolamntion callicg upon the loyal electora of the First aud Socond Congressional Dintricts of'Louisiana to ehooae represgntatives to Congreso, and appointed the 3d of De ceinber as the day for holding tho election One hundred and twenty-four raen of the Eiglith Vermont, captured on the 4th of September by the rebels, were returned to New Orleans on the liUh. - Seven were shot by the rebels for liaving ouüsted iu New Orleans 303 forrner Confedérate?, who had also enlisted in the Eighth. Sergeant Mills and private Spear, both of Hoyalton, Vt., were detained at Vicksburg, and fourdied during thoir captivity. (ien. Butler had seized and cloeed the Bank of New Orlearns for sonding $405,000 in specie within sixty days to the rebel government. This specie had been previously reported to Ge.i Butler as having been sent away, which was uot ; the fact. A cavalry reoonnoissancefrom General Weitzel's force cnpturod two cannon within four miles of Baton Rouge. The Delta of the 15th exposes the transaetions of lid. Grauthovin & Co., with the rebels, aud implicato-t the Fiench Consul.