Adjoining Trinity is its rival, St. John's College, also consisting of four courts, though one of them is of modern construction and on the opposite bank of the river. This college was founded by the countess Margaret of Richmond, mother of Henry VII., and opened in 1516, having been for three centuries previously a hospital. It is generally regarded from this circumstance as being the oldest college at Cambridge. The gateway is a tower of mingled brick and stone and one of the earliest structures of the college. Entering it, on the opposite side of the court is seen the New Chapel, but recently completed, a grand edifice one hundred and seventy-two feet long and sixty-three feet high, with a surmounting tower whose interior space is open and rises eighty-four feet above the pavement. The roof and the windows are richly colored, and variegated marbles have been employed in the interior decoration. The eastern end is a five-sided apse; the ceiling is vaulted in oak, while the chapel has a magnificent screen. Between the first and second courts is the hall, recently enlarged and decorated, and the library is on the northern side of the third court. It is a picturesque room of James I.'s time, with a timbered roof, whitened walls, and carved oaken bookcases black with age. The second court is of earlier date, and a fine specimen of sixteenth-century brickwork. On the southern side is an octagonal turret, at the top of which is the queer little room occupied by Dr. Wood, whose statue is in the chapel. When he first came to college from his humble home in the north of England he was so poor that he studied by the light of the staircase candle, and wrapped his feet in wisps of hay in winter to save the cost of a fire. He became the Senior Wrangler, and in due course a Fellow, and ultimately master of the college. To this was added the deanery of Ely. Dying, he bequeathed his moderate fortune for the aid of poor students and the benefit of his college. Of the third court the cloister on the western side fronts the river. The New Court, across the Cam, is a handsome structure, faced with stone and surmounted by a tower. A covered Gothic bridge leads to it over the river from the older parts of the college. In the garden along the river, known as the Wilderness, Prior the poet is said to have laid out the walks. Here among the students who have taken recreation have been Wordsworth and Herschel, Wilberforce and Stillingfleet. [Illustration: ST. JOHN'S CHAPEL.] CAIUS AND CLARE COLLEGES.