is an open space, bounded on the north by the National Gallery of Pictures and the Royal Academy of Arts, on the east by St. Martin’s Church, south by Northumberland House and Charing Cross, and on the west by the new College of Physicians: in the centre is the Nelson column; on either side are fountains. The National Gallery was built in 1837, by Sir W. Wilkins. St. Martin’s Church was erected in 1722, by Gibbs: Nell Gwyn, who was buried here, left a weekly entertainment to the bell-ringers, which they still enjoy. The Admiralty being in the parish, it is usual to announce naval victories from the belfry of this church. BAKED POTATOES, ALL HOT! _How_ VERY _cold it is_! the Potato-merchant jumps about to warm his feet. It is fine time for the boys; they are pelting each other with snowballs. The drayman leads his team with care, lest they should slip on the icy road. See the snow on the statue of Charles; it recalls to mind the burial of that unfortunate monarch,--the snow that fell then was looked upon as type of his innocence. CHARING CROSS. So named, from a cross erected there by Edward I., to commemorate his affection for his beloved queen, Eleanor. The cross marked the last resting-place of the body on its way to Westminster: the exact spot is now occupied by the equestrian statue of Charles I.; it is in bronze, and was executed by Le Sœur, in 1633, for the Earl of Arundel. NORTHUMBERLAND HOUSE, the town residence of the Duke of Northumberland, forms one side of Trafalgar Square. It was built by Henry Howard, Earl of Northampton, in whose time it was called Northampton House. In 1643 it fell to Algernon Earl of Northumberland, by marriage; since then it has been called Northumberland House. The only part seen from the street is the screen, which was repaired about 1752, but supposed to have been built in the reign of Edward VI. On the top is a lion passant. A spacious court intervenes between this and the house, behind which are extensive gardens reaching down to the river. Bernard Jansen was architect of this ancient house, to which Inigo Jones erected a fourth side. [Illustration: CHARING CROSS. WITH NORTHUMBERLAND HOUSE, AND STATUE OF KING CHARLES THE FIRST. BAKED POTATOES ALL HOT.] [Illustration: WHITE HALL. BOW POTS.] BOW POTS! (OR BAY POTS!) TWO A PENNY! They are mostly sold by women, who obtain them from Covent-Garden Market or from nurserymen in the suburbs, and are offered to the lovers of nature in the more dense parts of our city. You perceive it is warm weather--a glorious summer’s day; the dust flies, and the watering-cart is about to render it more pleasant. We are in WHITEHALL,