that modern experiment has done a deadly thing to poetry by discovering the nature of the rainbow, the air, etc., that is to say, that the knowledge of natural history and physics, by shewing us the nature of things, does away with the imaginations that once adorned them. This is a condescension to a learned vulgarism, which so excellent a poet as Mr Keats ought not to have made. The world will always have fine poetry, so long as it has events, passions, affections, and a philosophy that sees deeper than this philosophy. There will be a poetry of the heart, so long as there are tears and smiles: there will be a poetry of the imagination, as long as the first causes of things remain a mystery. A man who is no poet, may think he is none, as soon as he finds out the physical cause of the rainbow; but he need not alarm himself:--he was none before. The true poet will go deeper. He will ask himself what is the cause of that physical cause; whether truths to the senses are after all to be taken as truths to the imagination; and whether there is not room and mystery enough in the universe for the creation of infinite things, when the poor matter-of-fact philosopher has come to the end of his own vision. In _Endymion_ Keats had impeded and confused his narrative by working into it much incident and imagery symbolic of the cogitations and aspirations, the upliftings and misgivings, of his own unripe spirit. Three years later, writing to Shelley from his sickbed, he contrasts that former state of his mind with its present state, saying that it was then like a scattered pack of cards but is now sorted to a pip. The three tales just discussed, written in the interval, show how quickly the power of sorting and controlling his imaginations had matured itself in him. In them he is already an artist standing outside of his own conceptions, certain of his own aim in dealing with them (subject perhaps to some reservation in the case of _Lamia_), and scarcely letting his personal self intrude upon his narrative at all to complicate or distract it. For the expression of his private moods and meditations he had perfected during the same interval a new and beautiful vehicle in the ode. He had been accustomed to try his hand at odes, or what he called such, from his earliest riming days: and odes also, to all intents and purposes, are the two great lyrics in _Endymion_, the choral hymn to Pan and the song of the Indian maiden to Sorrow. But those which he composed in quick succession, as we have seen, in the late spring of 1819 are of a reflective and meditative type, new in his work and highly personal.