Just above the bust of Sir Walter Scott is a bronze medallion with a portrait head of John Ruskin, author of _The Stones of Venice_, _Modern Painters_, _Sesame and Lilies_, and many other well-known works on art and life. In St. Edmund’s Chapel is the grave of Edward Bulwer Lytton, Lord Lytton, author of many widely read novels and historical romances. Among his best known books are _The Last Days of Pompeii_, _The Caxtons_, _Rienzi_, and _Kenelm Chillingly_. He died in 1873. Several of the great actors of the nineteenth century are commemorated in the Abbey. Such are Mrs. Siddons, and her brother, John Philip Kemble, whose statues are in St. Andrew’s Chapel. Sir Henry Irving, the well-known actor of Shakspeare’s plays, as well as of many others, died in 1905, and is buried at the foot of Shakspeare’s monument, close to the grave of his great brother-actor, David Garrick. In the Musicians’ Aisle is the grave of Sir William Sterndale Bennett, one of the chief English composers of his time. He died in 1875. In the same aisle is a medallion in memory of Michael Balfe, who composed _The Bohemian Girl_, and a window to James Turle, who was organist of the Abbey for fifty-six years. In St. Andrew’s Chapel is a window in memory of Vincent Novello, founder of the famous house of music publishers of that name. [Illustration: [_D. Weller_. GRAVES OF NEWTON, HERSCHEL, DARWIN, AND KELVIN. ] The great and especial glory of the nineteenth century was the wonderful development of almost every kind of scientific knowledge and work, and the number of important scientific discoveries that were made. It is not too much to say that some of these discoveries, and some of the new theories about our world and the things in and around it, have influenced and changed our lives and our thoughts very much indeed. We can see this very plainly if we think of what Darwin has taught us, and if we think of the invention of the steam-engine, the introduction of railway travelling, and of steamships, of land and ocean telegraphy, telephones, motors, wireless telegraphy, and now of airships. This extraordinary progress in scientific research and knowledge is not without its record in the Abbey, as we shall see. We shall find that many of the great men of science who lived in the nineteenth century are either buried or commemorated in the Abbey. Foremost among these is Charles Robert Darwin, the biologist of world-wide fame, author of _The Origin of Species_, _The Descent of Man_, and other celebrated scientific works. Darwin died in 1882, and is buried in the north aisle of the Nave, quite near the grave of Sir Isaac Newton.