Professor J. Lewis Smith of Bellevue Hospital Medical College, New York, has met with the following cases:--An Irishwoman, of strong emotions and superstitions, was passing along a street, in the first months of her pregnancy, when she was accosted by a beggar, who raised her hand, destitute of thumb and fingers, and in 'God's name' asked for alms. The woman passed on, but, reflecting in whose name money was asked, felt that she had committed a great sin in refusing assistance. She returned to the place where she had met the beggar, and on different days, but never afterwards saw her. Harassed by the thought of her imaginary sin, so that for weeks, according to her statement, she was distressed by it, she approached her confinement. A female infant was born, otherwise perfect, but lacking the fingers and thumb of one hand. The deformed limb was on the same side, and it seemed to the mother to resemble precisely that of the beggar. In another case which Professor Smith met, a very similar malformation was attributed by the mother of the child to an accident occurring, during the time of her pregnancy, to a near relative, which necessitated amputation. He examined both of these children with defective limbs, and has no doubt of the truthfulness of the parents. In May, 1868, he removed a supernumerary thumb from an infant, whose mother, a baker's wife, gave the following history:--No one of the family, and no ancestor, to her knowledge, presented this deformity. In the early months of her pregnancy she sold bread from the counter, and nearly every day a child with a double thumb came in for a penny roll, presenting the penny between the thumb and the finger. After the third month she left the bakery, but the malformation was so impressed upon her mind, that she was not surprised to see it reproduced in her infant. In all these cases the impression was produced in the early months of pregnancy; but many have been recorded in which malformations in the infant appeared distinctly traceable to strong mental emotions of the mother only a few months previous to confinement, these impressions having been persistent during the remaining period of the pregnancy, and giving rise to a full expectation on the part of the mother that the child would be affected in the particular manner which actually occurred. Professor Carpenter, the distinguished physiologist, is personally cognisant of a very striking case of the kind which occurred in the family of a near connection of his own. All the above instances have been those of the effects of persistent mental emotion. But it is also true that _violent and sudden emotion_ in the mother leaves sometimes its impress upon the unborn infant, although it may be quickly forgotten.