2 JULY 1853, Page 10

The Washington arrived at Southampton yesterday, from New York. The

dates are to the 18th June. It is reported that a Negro conspiracy to burn New Orleans, as a signal for a general insurrection, had been dis- covered at that city ; but the evidence is at present very defective. A free Negro gave the information. One Dyson, an Englishman, a keeper of a Negro school, is said to be deeply implicated. Twenty Negroes were arrested, and every precaution was taken to defeat any attempt which might be made.

Large and continued importations of Negroes into Cuba are still re- ported. The famous slaver Lady Suffolk quite recently evaded the Bri- tish cruisers, landed 1000 slaves, and was then scuttled and sunk.