At the mouth of the Arkansas is a village called Napoleon, of which I received, on authority not to be disputed, the following horrible account. A few years ago it was the head quarters of lawless and bloody men. They fabricated base coin, gambled, robbed, murdered. To such a pitch of wickedness had they arrived, and such a terror were they to the whole country, that a party of men from Memphis (a city on the eastern side of the Mississippi, 180 miles up) took the law into their own hands, armed themselves with deadly weapons, came down, scoured the country around, caught about fifty of the ringleaders, and put them to death. Some they shot,--some they hanged,--and some they threw, tied hand and foot, into the river. Of this dreadful tragedy no judicial notice was ever taken! February 15.--I had an attack of intermittent fever, and consequently saw nothing of the scenery around. At night the fog was so dense that the officers deemed it prudent to "lie to." February 16.--At 9 A.M. we were abreast of the city of Memphis, on the Tennessee side of the river. Higher up there is Cairo. These slave-holders, who retain their fellow-men in worse than Egyptian bondage, seem to have a great partiality for Egyptian names. Memphis is pleasantly situated on high "bluffs," and is a great point for the shipping of cotton. It does not, however, thrive by _honest_ industry. I obtained a copy of the _Daily Inquirer_ of that day, where--among advertisements of pianos, music, bonnets, shawls, &c., for the ladies--I found the following:-- "ONE HUNDRED DOLLARS REWARD.--Ran away from the subscriber, on the 20th of October last, two Negro Fellows of the following description.--To wit,--Evan, 25 years of age, about 5 feet 11 inches high, complexion black, thick bristly beard, low soft voice, and apt to look down when spoken to; has a large scar on the calf of one of his legs, caused by the bite of a dog when he was 8 or 10 years old; some of his jaw-teeth missing or decayed. Ellis, 22 years of age, about 5 feet 11 inches high; complexion dark mulatto, tinged with Indian blood; beard thin and light. From information derived from a brother of these boys, who was caught in Washington County, Miss., it appears they intended to apply for employment as wood-choppers in the upper part of this State, until they could raise money enough to dress fine, then set off for the State of Illinois. It is highly probable they will resort to fictitious names, for the purpose of baffling pursuit. "The above reward will be paid to any person confining them in any jail, so that I can get them again; or fifty dollars for either of them. "DUNCAN M'ALPIN." "SLAVE MARKET.--The subscribers have now, and will continue to keep on hand throughout the season, a large supply of choice Negroes, suited to every capacity, which they offer at the lowest market rates. They have agents abroad engaged in purchasing for them, which enables them to bid defiance to competition.