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Henry, E. R.—“Classification and Uses of Finger-Prints,” 1905.

Hepburn, D.-“The Papillary ridges on monkeys’ hands and feet,” (Nature, vol. liii., 36), 1895.

Herschel, W. J.—“Skin Furrows of the Hand,” (Nature, vol. xxii., 76), 1880.

Hopf, Ludwig. “The Human Species,” (Eng. trans.) 1909.

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