. Anthropology . 7 Maoris12 Dahoman Negroes 9 New Hebrideans ...15 Australians Cub. cent. 1524 . 1412 . 1488 . 14721500 . 1496 . 1440 . 1452 . 1470 . 1452 . 1446 . 1452 . 1432 . 1295 Cejrficdo-Orhital Index. The brain-case is not the only cavity of the skull of which cubicmeasurements have been made. The cavities and sinuses communi-cating with the nasal fossae have also been measured. M. Man- Crania Americana, by S. Gr. Morton. Folio. Philadelphia, 1839. 232 CEANIOMETEICAL MEASUEEMENTS. [Chap. ii. tegazza has made the orbits his special study in this respect. Hecloses the orifices with wax, a
. Anthropology . 7 Maoris12 Dahoman Negroes 9 New Hebrideans ...15 Australians Cub. cent. 1524 . 1412 . 1488 . 14721500 . 1496 . 1440 . 1452 . 1470 . 1452 . 1446 . 1452 . 1432 . 1295 Cejrficdo-Orhital Index. The brain-case is not the only cavity of the skull of which cubicmeasurements have been made. The cavities and sinuses communi-cating with the nasal fossae have also been measured. M. Man- Crania Americana, by S. Gr. Morton. Folio. Philadelphia, 1839. 232 CEANIOMETEICAL MEASUEEMENTS. [Chap. ii. tegazza has made the orbits his special study in this respect. Hecloses the orifices with wax, and fills the cavities with mercury,the volume of which he afterwards measures. The sum of thevolumes of both orbits thus obtained he compares with the cerebralcapacity. This is the cephalo-orbital index. His mean upon 200adult skulls from various sources was 27*2, and the extremes 22*7,and 36*5, not taking into account an index, evidently abnormal, of53*8 in an American skull. But it is important to be able to. Fig. 26.—The Callipers (Oompas dEpaisseur). distinguish between one race and another. To this end we havetaken from M. Mantegazzas measurements of these 200 skullsrecently published, 20 Italians and 12 Negroes and Oceanians, andthe following are their cephalo-orbital indices : * 20 Italians 2 Australians 3 New Zealanders ... ... 6 Negroes ... Dei Caratteri Gerarchia del Cranio Umano, by Paolo Mantegazza, inArchivio dell Anthropologia e la Etnologia. Florence, 1875. Chap, ii.] CRANIOMETKICAL POINTS. 233 The number of each series, except the first, is unfortunately toofew for us to be able to form any conclusion respecting New Zealanders appear to have larger orbital cavities than theAustralians in proportion to the cerebral cavity. This result should be considered, according to M. Mantegazzasproposal, by comparing Man with the anthropoid apes, namely, thatthe orbital capacity is smaller relatively to the cranial capacity,that the dominant p
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