Affairs in New York.
New York, August 27.
--The American Express has been searched, and a large number of interdicted letters have been found.
The bank statement shows an increase of loans, doubtless including those to Government of $28,000,000. The decrease in specie is $2,500,000.
The Marshal, to-day, arrested William M. Fiske, said to be from Louisiana, charged with uttering seditious sentiments at Newport, Rhode Island.
The New York Post says that large quantities of provisions, including 9,000 barrels of flour, were cleared to-day for Curacoa, and hints that the cargo is intended for some Southern port.