. The biology of twins (mammals) . Twins. 156 THE BIOLOGY OF TWINS discussion of his (Wilder's) conclusions appears in the last few pages of this chapter. Wilder's studies of friction-skin patterns in the palms and soles of twins.—It is a familiar fact that the surest method of identifying human beings is the finger-print method now in use in all modern detective bureaus and prisons. The method is based on the wide range of diversity in the details of the friction-ridge patterns. Fig. 52.—Photograph (from Wilder) of the left sole-prints of a pair of duplicate twins. The heavy lines are lines o
. The biology of twins (mammals) . Twins. 156 THE BIOLOGY OF TWINS discussion of his (Wilder's) conclusions appears in the last few pages of this chapter. Wilder's studies of friction-skin patterns in the palms and soles of twins.—It is a familiar fact that the surest method of identifying human beings is the finger-print method now in use in all modern detective bureaus and prisons. The method is based on the wide range of diversity in the details of the friction-ridge patterns. Fig. 52.—Photograph (from Wilder) of the left sole-prints of a pair of duplicate twins. The heavy lines are lines of interpretation. Note the striking similarity amounting almost to identity. of the palmar surfaces of the hands and feet. No two individuals are exactly alike in all details, but the resemblances between certain types of twins are really surprisingly close. The prints of the left soles of a pair of twins studied by Wilder show identity of general pattern (Fig. 52) but lack of identity in detail, for the exact number of friction ridges in corresponding parts of the pattern differs in the two Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Newman, Horatio Hackett, b. 1875. Chicago, Ill. : The University of Chicago Press
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