The data relating to finger-print patterns of 430 Maori males and 236 Maori females are presented. The overall percentage of whorls is very high, and that of loops and arches particularly low :Males: whorls=68.77%; loops=30.77%; arches=0.46% Females: whorls=63.47%; loops=35.89%; arches=0.64%.
In the case of pure-blood and near pure-blood Maoris (Tuhoe) the whorl percentages are higher (65 males=77.08% ; 86 females=68.60 %) than in the samples obtained from police records which unquestionably include larger numbers of Maori-European hybrids. The former figures approximate to those of Central (Society Island) Polynesians (Maupiti Is.), while the latter are closer to those of Samoans (probably similarly hybridised).
The whorl percentages in Maoris are exceeded-apart from the Maupiti Polynesians-by only a few population groups (Mangyans of Mindoro, Oroks of Sakhalin), in which the sample sizes are small and may not have been adequate. The high whorl percentaged of Australian aborigines from East Arnhem Land (male=77.6%; female=73.1%) are considerably higher than those of other aborigines so far studied; and the high whorl percentage of East Greenland Eskimos (male and female=72.2%) is suspect because of the familial relationship of the persons involved.
The high percentage of all-whorl combinations in the Maori accounts for the high degree of obligatory symmetry, and for the characteristic form of thebimanuar. The total frequency of pairs of fingers bearing the same pattern type is, however, comparable with that recorded for other races.

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A new technique with a simple apparatus is introduced in observing and measuring the diameter of hair directly on cross section.
About 10 hairs are arranged in parallel in place of the film of a slidef rame of cardboard; about 10 holes are made both on the upper and lower edges of the opening of the slide-frame, through which holes the hairs are fixed for easy manipulation's sake.
A 10 percent celloidin solution is poured to fill the opening of the slide-frame so that the hairs sink in the solution. In about 1.5 hours there is produced a hardened celloidin with the hairs embedded in it; the hardened celloidin is removed from the slide-frame. The hardened celloidin is sectioned to make a right angle to the arranged hairs. The section thus obtained is adequately placed under a microscope and observed by a reflected light instead of a penetrating light.
During the process a special holder consisting of a pair of wood is employed to secure the section placed under the microscope.

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The average growth changes of the stature and body weight of JapaneseAmerican hybrids who live inwelfare homes for children in Japan were analysed. The complete longitudinal data of 36 boys and 21 girls were used.
1) It did not affect the growth of the stature and body weight of the hybrids whether their fathers were whites or negroes.
2) As compared with their parental groups, the hybrids were as tall as the Japanese at the age of 6 years, but they were placed in an intermediate position between the whites and Iapanese at the age 15 years. The body weight of the hybrids Wa s very close to that of the Japanese at the age of 6 years, but tended to apProach that of the whites by the age of 15 years. These findings suggest that the growth in the prepuberal period depends upon environmental conditions, and that hereditary influences appear first at adolescence.
3) The peak velocity in the adolescent growth was reached almost at the identical age period in the hybrids, whites, and Japanese, but the annual gain at peak was considerably greater in the hybrids than in the others. Whether this high degree of acceleration at adolescence would be essential to the hybrids was discussed.

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