When he was ten years of age, Shelley went to school at Sion house, Brentford, an academy kept by Dr. Greenlaw, and frequented by the sons of London tradesmen, who proved but uncongenial companions to his gentle spirit. It is fortunate for posterity that one of his biographers, his second cousin Captain Medwin, was his schoolfellow at Sion House; for to his recollections we owe some details of great value. Medwin tells us that Shelley learned the classic languages almost by intuition, while he seemed to be spending his time in dreaming, now watching the clouds as they sailed across the school-room window, and now scribbling sketches of fir-trees and cedars in memory of Field Place. At this time he was subject to sleep-walking, and, if we may credit this biographer, he often lost himself in reveries not far removed from trance. His favourite amusement was novel-reading; and to the many "blue books" from the Minerva press devoured by him in his boyhood, we may ascribe the style and tone of his first compositions. For physical sports he showed no inclination. "He passed among his school-fellows as a strange and unsocial being; for when a holiday relieved us from our tasks, and the other boys were engaged in such sports as the narrow limits of our prison-court allowed, Shelley, who entered into none of them, would pace backwards and forwards--I think I see him now--along the southern wall, indulging in various vague and undefined ideas, the chaotic elements, if I may say so, of what afterwards produced so beautiful a world." Two of Shelley's most important biographical compositions undoubtedly refer to this period of his boyhood. The first is the passage in the Prelude to "Laon and Cythna" which describes his suffering among the unsympathetic inmates of a school:-- Thoughts of great deeds were mine, dear Friend, when first The clouds which wrap this world from youth did pass. I do remember well the hour which burst My spirit's sleep: a fresh May-dawn it was, When I walked forth upon the glittering grass, And wept, I knew not why; until there rose From the near school-room, voices, that, alas! Were but one echo from a world of woes-- The harsh and grating strife of tyrants and of foes. And then I clasped my hands and looked around-- --But none was near to mock my streaming eyes, Which poured their warm drops on the sunny ground-- So without shame I spake:--"I will be wise, And just, and free, and mild, if in me lies Such power, for I grow weary to behold The selfish and the strong still tyrannize Without reproach or check." I then controlled My tears, my heart grew calm, and I was meek and bold.