THE PRIME MINISTER'S (10, Downing Street, Westminster.)

THOMAS CARLYLE'S. (Cheyne Row, Chelsea.)

MR. ALMA TADEMA'S. (St. John's Wood.)

The knocker on the door of Carlyle's house, Cheyne Row, Chelsea, a house which was occupied by him for half a century, is another very interesting specimen. Scarcely was the young ex-schoolmaster and author of "Sartor Resartus" well settled in his new abode than he began to receive callers, who, if not very famous then, have since achieved considerable renown.

Among them was young Mr. Charles Dickens, then the blushing "Boz," who, with Mrs. Dickens, stepped out of a gorgeous green hackney coach to administer a knock on the door, having driven all the way from Doughty Street, Brunswick Square, to pay a call. Forster, Serjeant Talfourd, Maclise, Macready, Landor, Leigh Hunt, and Thackeray were frequent knockers during the first decade.

It is not difficult to imagine some youthful admirer of Carlyle giving a timid knock at the door, and then wishing that he had the courage to run away from the house before being ushered into the presence of the irascible Philosopher. Mr. Alma Tadema's knocker is forbidding enough in appearance, and holds out but little promise of the beauties of that wonderful house where the artist resides in St. John's Wood. No doubt it is, like everything else about his home, from a design by the great painter himself.

THE DUKE OF DEVONSHIRE'S. (Piccadilly.)