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Rh broken by movements of the body into polygonal, horny plates of varying size and of a dirty-yellowish hue. In winter the skin upon the trunk was smooth, though thickened and horny in character. In the spring this horny integument was wont to crack and present the characteristic alligator appearance,

20.—Polygonal plates of ichthyosis.

while the hair of the head was almost entirely shed. At birth, according to Dr. F. Kennedy, the child presented a most extraordinary appearance. The skin was smooth, as if polished, and of a deep-red color. It was impossible for the child to make use of its facial muscles in its efforts to cry or suck. After a