Shall I be pardoned for having dwelt so long on this history of the mental and corporeal ills of my childhood? Such details will probably appear more trivial to the frivolous and ignorant than to the philosophic and well informed: not only because the best informed are usually the most indulgent judges, but because they will perceive some connexion between these apparently puerile details and subjects of higher importance. Bacon, and one who in later days has successfully followed him on this ground, point out as one of the most important subjects of human inquiry, equally necessary to the science of morals and of medicine, “The history of the power and influence of the imagination, not only upon the mind and body of the imaginant, but upon those of other people.” This history, so much desired and so necessary, has been but little advanced. One reason for this may be, that both by the learned and the unlearned it is usually begun at the wrong end. “_Belier, mon ami, commences par le commencement_,” is excellent advice; equally applicable to philosophical history and to fairy tale. We must be content to begin at the beginning, if we would learn the history of our own minds; we must condescend to be even as little children, if we would discover or recollect those small causes which early influence the imagination, and afterwards become strong habits, prejudices, and passions. In this point of view, if they might possibly tend to turn public attention in a new direction to an important subject, my puerile anecdotes may be permitted. These, my experiments, _solitary and in concert, touching fear_, and _of and concerning sympathies and antipathies_, are perhaps as well worth noting for future use, as some of those by which Sir Kenelm Digby and others astonished their own generation, and which they bequeathed to ungrateful posterity. CHAPTER II.