Anomalous Color Changes of the Hair.--The hair is liable to undergo certain changes of color connected with some modification of that part of the bulb secreting its coloring-matter. Alibert, quoted by Rayer, gives us a report of the case of a young lady who, after a severe fever which followed a very difficult labor, lost a fine head of hair during a discharge of viscid fluid, which inundated the head in every part. He tells us, further, that the hair grew again of a deep black color after the recovery of the patient. The same writer tells of the case of James B--, born with brown hair, who, having lost it all during the course of a sickness, had it replaced with a crop of the brightest red. White and gray hair has also, under peculiar circumstances, been replaced by hair of the same color as the individual had in youth. We are even assured by Bruley that in 1798 the white hair of a woman sixty years of age changed to black a few days before her death. The bulbs in this case were found of great size, and appeared gorged with a substance from which the hair derived its color. The white hairs that remained, on the contrary, grew from shriveled bulbs much smaller than those producing the black. This patient died of phthisis. A very singular case, published early in the century, was that of a woman whose hair, naturally fair, assumed a tawny red color as often as she was affected with a certain fever, and returned to its natural hue as soon as the symptoms abated. Villerme alludes to the case of a young lady, sixteen years of age, who had never suffered except from trifling headaches, and who, in the winter of 1817, perceived that the hair began to fall out from several parts of her head, so that before six months were over she became entirely bald. In the beginning of January, 1819, her head became covered with a kind of black wool over those places that were first denuded, and light brown hair began to develop from the rest of the scalp. Some of this fell out again when it had grown from three to four inches; the rest changed color at different distances from its end and grew of a chestnut color from the roots. The hair, half black, half chestnut, had a very singular appearance.