栃木県那須郡住民の指紋の研究

抄録

By using Koike's method of classification, studies were made on the fingerprints of the inhabitants, 1, 141 males and 1, 358 females, of Nasu-gun, Tochigi Prefecture. The results are summarized as follows:
(1) The fingers in which the types S. and OW showed the highest and second highest incidences, respectively, were the middle and small fingers of the right hand and the middle and small fingers of the left hand in males, and all the fingers other than the ring fingers of either hands in females. The fingers in which there were the highest and second highest incidences of OW and S respectively, were the ring fingers of either hands both in males and females.
(2) Incidences of all the types of fingerprints in each finger were almost the same in males and females, and in the right hand as in the left, with slight exceptions. The type B occurred most often in the index finger, the type S in the small or middle finger, the type ODS in the thumb and type OW in the 4th finger.
(3) In fingers in which there were differences in the incidence of the type of fingerprint between the right and left hands, the incidences of the types B, S, and ODS were higher in the left hand than in the right, while the type OW occurred in greater number in the right hand than in the left. In the middle finger in females, however, the incidence of the type S was higher in the right hand than in the left, and the incidence of the type OW was higher in the left hand than in the right.
(4) When the incidences of all the types of finger prints in each finger were examined, there were some fingers which showed differences in incidence of the type of fingerprint due to sex. In these fingers the incidences of the types B, S and ODS were higher in females, while the incidence of the type OW was higher in males.
(5) When the incidences of all the types of fingerprints in the five fingers of a hand were examined, there were some hands which showed differences in the incidence of the type of fingerprint between males and females. In these hands the incidences of the types B, S and ODS were higher in females, and the incidence of the type OW was higher in males.
(6) In the incidence of the type of fingerprint in each hand, the inhabitants of Nasu-gun were in the intermediate position between the inhabitants of South Kanto and Tohoku Districts; in both males and females the incidence of the type B was higher in Nasu-gun than in South Kanto District, and lower in Nasu-gun than in Tohoku District, in males the incidence of the type OW was higher in Nasu-gun than in Tohoku District, though there was no significant difference in the incidence of this type between Nasu-gun and South Kanto District, while in females the incidence of this type was higher in Nasu-gun than in Tohoku-District, and lower in Nasu-gun than in South Kanto District, and there was not much difference between these districts in the incidence of the type S.