But to return to Hahnemann. He was very kind to me, and I looked up to him as a giant both in body and in mind. But he could not deliver me from my enemy, the ever recurrent migraine. The cures, however, both at Dessau and at Coethen, where he had been made a _Hofrath_ by the reigning Duke, were very extraordinary. Hahnemann remained in Coethen till 1835, and in that year, when he was eighty, he married a young French lady, Melanie d’Hervilly, and was carried off by her to Paris, where he soon gained a large practice, and died in 1843, that is at the age of eighty-eight. Much of his success, I feel sure, was due to his presence and to the confidence which he inspired. How do I know that Sir Andrew Clarke, seeing that I was in low spirits about my health, did not think it right to encourage me, and by encouraging me did certainly make me feel confident about myself, and thus raised my vitality, my spirits, or whatever we like to call it? “Thy faith hath made thee whole” is a lesson which doctors ought not to neglect. How little we know the effect of the environment in which we grow up. My old granny has drawn deeper furrows through my young soul than all my teachers and preachers put together. I am not going to add a chapter to that most unsatisfactory of all studies, child-psychology. It is an impossible subject. The victim—the child—cannot be interrogated till it is too late. The influences that work on the child’s senses and mind cannot be determined; they are too many, and too intangible. The observers of babies, mostly young fathers proud of their first offspring, remind me always of a very learned friend of mine, who presented to the Royal Society most laborious pages containing his lifelong observations on certain deviations of the magnetic needle, and who had forgotten that in making these observations he always had a pair of steel spectacles on his nose. However, I have nothing to say against these observations, nor against their more or less successful interpretations. But the real harm begins when people imagine that in studying the ways of infants they can discover what man was like in his original condition, whether as a hairy or a hairless creature. To imagine that we can learn from the way in which children begin to use our old words, how the primitive language of mankind was formed, seems to me like imagining that children playing with counters would teach us how and for what purpose the first money was coined. There is no doubt a grain of truth in this infantile psychology, but it requires as many caveats as that which is called ethnological psychology, which makes us see in the savages of the present day the representation of the first ancestors of our race, and would teach us to discover in their superstitions the antecedents of the mythology and religion of the Aryan or Semitic races. The same philosophers who constantly fall back on heredity and atavism in order to explain what seems inexplicable in the beliefs and customs