Richmond Enquirer

From Smyrna.--The brig Samos, Parsons, arrived at quarantine, in Boston harbor, last Sunday, in 70 days from Smyrna. Mr. Topliff, of the Merchant Exchange Reading Room, obtained the following intelligence from two American gentlemen, passengers direct from Constantinople.

The brig Delos, Smith, was at Constantinople April 20th, being the first American merchantman bearing the flag of the United States, that had ever visited that port. Very great excitement was caused by the arrival of this vessel in sight of the Seraglio. She was immediately visited by many Turks of distinction, some of whom even carried away pieces of rope, as memorials of the event.

It is stated to have been determined by the Divan, though not yet revealed to the people, that in case the Russians reach Constantinople, that capital shall immediately be set on fire, after the example of Moscow.

The Sultan continues, according to law, to visit in state some place of Mohammedan worship every Friday. He is followed by his Court, and 30 led horses, through double files of soldiers, reaching from the gates of the Seraglio to the Mosque where his devotions are offered up. On these occasions, it is common to hear the remarks that he may not return alive. The heir to the Ottoman throne is a boy six or seven years old, the only acknowledged legitimate child, though the Sultan has many others. An older son, who by this time might have been in his father's way, has been missing several years.

The principal favorites of the Sultan at the present moment, are an English physician and an Italian riding master, who enjoy a greater share of his confidence than he has ever been wont to bestow upon any other individuals.

Business was very dull at Smyrna; there was no demand for articles of any description, and nothing in the market for export. Captain Parsons was informed by a boat off the Island of Poros, May 7th, that a Russian squadron of 12 sail, had arrived at Napoli de Romania the day before, the salute from which he distinctly heard. Between Malta and Cape de Gatte, the Camilla of Boston exchanged signals with the Cherub, bound up. Passed May 28th, off Algiers--a French squadron of two ships and two brigs. One of the passengers in the Samos, (Mr. Post) was supercargo of the Jane, which sailed from New York in September last with supplies for the Greeks.