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Table 11. Frequency of different types in 100 American shoewearing Negroes, feet symptomless.

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Table 12 shows the variation in five sandal-wearing Ainus. Table 12. Frequency of different types in 5 Ainus, Caucasian Sandal-wearers; Northern Japan, feet symptomless.

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It is probably true that weakness of the structures composing and maintaining the longitudinal arch is in some instances accompanied by depression of the arch, and that on account of this depression a greater area of the sole of the foot comes in contact with the ground. However, it was demonstrated by examination of imprints on smoked paper of 560 feet treated by me, all presenting more or less typical symptoms of weakness of the longitudinal arch, and nearly all deriving benefit from arch supports, that arch depression is not as frequent and marked as is commonly taught; in fact, that the average character of the imprints made for diagnostic purposes does not differ much from the average character of those found in symptomless feet.

sult of this examination is shown in Table 13.

Table 13. Frequency of different types in 560 Caucasian shoewearing feet that presented symptoms of weakness of the longi

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Table 14 shows the comparative frequency with which the different types of arches shown in Fig. 20 occurred in Philippine Malays (Barefooted); Central African Negroes (Barefooted); South African Negroes (Barefooted up to last six years); American Negroes (Shoe-wearers); Caucasians (Shoe-wearers); Ainus, Caucasians, Northern Japan (Sandal-wearers); all presenting symptomless feet; and in Caucasians (Shoe-wearers) under treatment for symptoms of weakness of the longitudinal arch.

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FIG. 21. PHOTOGRAPH OF NEGRITOS, SHOWING HABITUAL FOOT POSTURE IN STANDING.

Analysis of Table 14, shows that in the 536 individuals of different races with symptomless feet, the American and primitive Negroes presented a smaller percentage of low and a larger percentage of high arches than did the Caucasians. This contra

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dicts a commonly accepted view. The Philippine Malay showed a somewhat larger percentage of low arches than did either the Negro or Caucasian. Another thing shown in this table is that the 560 Caucasian feet with symptoms of weakened arches, did

not present a much larger percentage of low arches than did the symptomless Caucasian feet. The histories accompanying

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these 560 impression records, show that the feet with long standing or severe symptoms did not occur oftener among the lower

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