著者

平川 達

出版者

日本民族衛生学会

雑誌

民族衛生 (ISSN:03689395)

巻号頁・発行日

vol.25, no.2, pp.126-132,A11, 1959

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4. A survey of birth and birth-control; The average numberof birth of a woman was 3.5, which is not so high. The number of birth tended to decrease in younger generation. According to the survey on birth-control, among 48 ansewers of whom used to practice birth-control, the economical reason proved 27.1 %. Besides, it was remarkable that artificial abortion was popular

著者

平川 達

出版者

日本民族衛生学会

雑誌

民族衛生 (ISSN:03689395)

巻号頁・発行日

vol.25, no.2, pp.133-139,A11, 1959

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5. Consanguineous marriage; The frequency of consanguineous marriage was 11.9 per cent, among which the marriage between consins were the most. The 1.62 per cent of the whole population were psychotic. This percentage is rather high comparing with other island of Izu. It was also noticed that there would be some consanguineous relations among these psychotics.<BR>Using Prof. Koike's classification, it was recognized that finger-prints were frequent in the type S and in the type OW in hand.