Boas AND Wissler.1904Statistics of growth . Report of the U. S. Commissioner of Education, p. 25.
2.
Crampton.1908 Physiological age-a fundamental principle. American Phys. Education Rev. , xiii, pp. 141, 214, 268, 345.
3.
Boas.1911 Changes in bodily form of descendants of immigrants. Reports o the Immigration Commission, pp. 38 and 129-137.
4.
Deaver.1912 Strength and lung capacity in relation to pubescence. MS., International Young Men's Christian Association College, Springfield, Mass.
5.
Crampton.1908 Physiological age-a fundamental principle, p. 351.
6.
Boas AND Wissler.1904Statistics of growth. Report of the U. S. Commissioner of Education, p. 34.
7.
Channing AND Wissler.1908 The hard palate in normal and feeble-minded individuals. Anthropological Papers, American Museum of Natural History, i, p. 316-319.
8.
Boas.1912 The growth of children. Science, xxxvi, p. 817.