When this very interesting excursion was over, the party returned to the Brevoort House, and after a short interval for repose they were off again, this time to visit Wall Street, the Chamber of Commerce, and the Sub-Treasury of the United States. The latter is an exceedingly fine Doric building of white marble, with a noble rotunda, supported inside by sixteen Corinthian columns. It stands upon the site of the Federal Hall, where Washington delivered his first address as President of the United States. The Duke and his friends were received here by General ----, and conducted through the various departments to the strong rooms, in which were deposited, in neat jackets of canvas, many millions of gold. At the Chamber of Commerce we found some interesting memorials of the old British occupation, portraits of governors and generals of the ante-revolutionary period. The venerable statistician, Mr. Ruggles, gave us much valuable and elaborate information respecting the enormous development of the trade of New York, and expatiated on the vast extension of the wheat and corn-growing power of the United States, and its increasing exportations to Europe. In the evening the Duke and his friends were entertained by the Hon. Edwards Pierrepoint, where we met a very distinguished party--Mr. Blaine, Secretary of State, Governor Cornell, Mr. Hamilton Fish, Mr. Jay, Mr. Low, Mr. Kennedy, Mr. Royal Phelps, Mr. Stout, Mr. Potter, Mr. Choate, Messrs. Beckwith, Mr. Robinson. The honours of the mansion in Fifth Avenue, which contains many interesting souvenirs of Mr. Pierrepoint's official career in England, were graciously rendered by Mrs. Pierrepoint. And later, there was a reception, at which a number of eminent persons were presented to the Duke. I am not sufficiently versed in the details of fire department management in great cities to offer an opinion on the merits of any particular system. I have seen many fires in my life, and I can only suppose that if the present arrangements are nearly perfect in any one place fires must be regarded as invincible, and fire departments can only report progress and stay the march of the well-called devouring element towards universal sway. Alderman Waite was very anxious that the Duke, as an expert, should have an opportunity of seeing officially the working of the New York system, and it was arranged that what was styled another "impromptu" should be made.