Mr. Dayton to Mr. Seward

No. 526.]

Sir: The enclosed slip is cut from Galignani of this morning, and I receive at the same time like information as to the projected trial trips of these vessels from our consul at Nantes. There is a thin iron plating, it is said, on the inside of these vessels not more than an inch at most in thickness. I have given this information to Captain Rodgers, of the Iroquois, who is now at Havre repairing the boilers of his ship, and advised him to appear off the port of Nantes and consult with our consul at that port.

I am, sir, your obedient servant,

WM. L. DAYTON.

Hon. William H. Seward, Secretary of State, &c., &c., &c.

[Untitled]

Another iron-clad frigate, the Magnanime, has been launched at Brest.

Two ships, intended for the confederate government, have for some time past been in construction at Nantes. The Phare de la Loire now states that the San Francisco and the Chang Hai are still in the dock at St. Nazaire, where their fitting out is being completed with a certain mystery. A notice, placed in a conspicuous position before the building shed, forbids the entrance of strangers. Fastenings are said to have been placed around the sides of the vessels in the vicinity of the engines, to receive chains, and thus form an armor similar to that used by the Kearsarge in its encounter with the Alabama. M. Voruz is stated to have received from the minister of marine the authorization to try the engines; Count de Chasseloup-Laubat, however, required that only one vessel should leave the harbor at a time, and that he should be informed of each departure and arrival of these ships. The Phare de la Loire adds that the date for the trial trips has not yet been fixed.