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OCR Rendition - approximate
CHAPTER VIII
THE data used in this chapter are the prints of 5000 different digits, namely, the ten digits of 500 different persons ; each digit can thus be treated, both separately and in combination, in 500 cases. Five hundred cannot be called a large number, but it suffices for approximate results ; the percentages that it yields may, for instance, be expected to be trustworthy, more often than not, within two units. When preparing the tables for this chapter, I gave a more liberal interpretation to the word " Arch " than subsequently. At first, every pattern between a Forked-Arch and a Nascent-Loop (Plate 7) was rated as an Arch ; afterwards they were rated as Loops. The relative frequency of the three several classes in the 5000 digits was as follows Arches . 6.5 per cent. Loops . 67-5 „ Whorls 26-0 „ Total . 100.0 From this it appears, that on the average out of every
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