Bean, R.B.: The Stature and the Eruption of the Permanent Teeth of American, German-American, and Filipino Children; Deductions From the Measurements and Examination of 1445 Public School Children in Ann Arbor, Mich., and 776 in Manila, P. I., Am. J. Anat. 17: 113, 1914.
2.
Cartwright, S. : A Course of Lectures on Dental Surgery Delivered at King's College; Lecture IV, Brit. J. Dent. Sc.1 : 343, 1857, p. 346.
3.
Cattell, P.: Dentition as a Measure of Maturity. Harvard Monographs in Educ., No. 9, Cambridge, 1928, Harvard University Press , Fig. 21, p. 56, and Fig. 27, p. 68.
4.
Cohen, J.T.: A Statistical Study of Caries in the Deciduous and Permanent Teeth of Children , J. Am. Dent. A. 23: 312, 1936.
5.
Finn, S.B.: Prevalence of Dental Caries in a Survey of the Literature of Dental Caries , Washington, D. C., 1952, Publication 225, National Research Council, pp. 117-173.
6.
Fulton, J.T. : Dental Caries Experience in Primary Teeth, J. D. Res. 31: 839, 1952.
7.
Godeny, E.: Studies on the Eruption of the Permanent Teeth. I. The Ages at the Eruption of the Different Teeth in the Normal School Population in Hungary, Acta Genet. Stat. Med. 2: 331, 1951.
8.
Hurme, V. 0.: Standards of Variation in the Eruption of the First Six Permanent Teeth, Child Development19: 213, 1948.
9.
Hurme, V. 0.: Ranges of Normalcy in the Eruption of Permanent Teeth, J. Dent. Children16: 11, 1949.
10.
Kelley, T.L.: Statistical Method, New York, 1924, The Macmillan Company, pp. 104-105.
11.
Klein, H., Palmer, C.E., and Kramer, M.: Studies on Dental Caries. II. The Use of the Normal Probability Curve for Expressing the Age Distribution of Eruption of the Permanent Teeth, Growth1: 385, 1937.
12.
Knutson, J.W. , Klein, H., and Palmer, C.E.: Studies on Dental Caries. VII. Relative Incidence of Caries in the Different Permanent Teeth, J. Am. Dent. A. 25: 1923, 1938.
13.
Saunders, E.: The Teeth as a Test of Age, Considered With Reference to the Factory Children; Addressed to the Members of Both Houses of Parliament, London, 1837, H. Renshaw, 76 pp.
14.
Steggerda, M., and Hill, T.J.: Eruption Time Among Whites, Negroes, and Indians, Am. J. Orthodontics28: 361, 1942.
15.
Stones, H.H. , Lawton, F.E., Bransby, E.R., and Hartley, H. 0.: Time of Eruption of Permanent Teeth and Time of Shedding of Deciduous Teeth, Brit. D. J. 90: 1, 1951.
16.
Suk, V. : Eruption and Decay of Permanent Teeth in Whites and Negroes, With Comparative Remarks on Other Ages, Am. J. Phys. Anthropol. 2: 351, 1919.
17.
Wuorinen, T.A. : Beitrag zur Kenntnis des Zahnwechsels bei den Finnen. I. Die Dauer des ausserlich wahrnehmbaren Durchbruchs der permanenten Zähne, mit ausnahme des dritten Molaris, Helsinki, 1926, Lindbergin Kirjapaino Osakeyhtio, Table63, p. 86.