I spent the next afternoon in the Reading Room of the British Museum. I was searching for a precedent, and at last I found one in the story of Christian Heinrich Heinecken, [1] who was born at Lübeck on February 6, 1721. There were marked points of difference between the development of Heinecken and that of Stott's child. Heinecken was physically feeble; at the age of three he was still being fed at the breast. The Stott precocity appeared to be physically strong; his body looked small and undeveloped, it is true, but this was partly an illusion produced by the abnormal size of the head. Again Heinecken learned to speak very early; at ten months old he was asking intelligent questions, at eighteen months he was studying history, geography, Latin and anatomy; whereas the Stott child had only once been heard to speak at the age of two years, and had not, apparently, begun any study at all. From this comparison it might seem at first that the balance of precocity lay in the Heinecken scale. I drew another inference. I argued that the genius of the Stott child far outweighed the genius of Christian Heinecken. Little Heinecken in his four years of life suffered the mental experience--with certain necessary limitations--of a developed brain. He gathered knowledge as an ordinary child gathers knowledge, the only difference being that his rate of assimilation was as ten to one. But little Stott had gathered no knowledge from books. He had been born of ignorant parents, he was being brought up among uneducated people. Yet he had wonderful intellectual gifts: surely he must have one above all others--the gift of reason. His brain must be constructive, logical; he must have the power of deduction. He must even at an extraordinarily early age, say six months, have developed some theory of life. He must be withholding his energy, deliberately; declining to exhibit his powers, holding his marvellous faculties in reserve. Here was surely a case of genius which, comparable in some respects to the genius of Heinecken, yet far exceeded it. As I developed my theory, my eagerness grew. And then suddenly an inspiration came to me. In my excitement I spoke aloud and smacked the desk in front of me with my open hand. "Why, of course!" I said. "That is the key." An old man in the next seat scowled fiercely. The attendants in the central circular desk all looked up. Other readers turned round and stared at me. I had violated the sacred laws of the Reading Room. I saw one of the librarians make a sign to an attendant and point to me. I gathered up my books quickly and returned them at the central desk. My self-consciousness had returned, and I was anxious to be away from the observation of the many dilettante readers who found my appearance more engrossing than the books with which they were dallying on some pretext or another.