We have attempted to simplify the extensive task of analyzing onset ages and completion ages of each child -- more than 1700 values for the entire group -- by constructing figures for each of the 21 centers so that the data for all 34 boys and 34 of the girls will appear together for each growth center. Figures 5 and 6 are examples of our method of analyzing the results for each growth center. Forty other figures similar to 5 and 6 and the original data used in the construction of all figures and tables in this monograph have been included in the Appendix.

The principles used in making each arrow for Figures 3 and 4 were applied to the construction of Figures 5 and 6 as well as all figures in the Appendix. One growth center in a short bone -- distal phalanx of the second finger -- was chosen as an example for discussion here, primarily because epiphyseal diaphyseal fusion, the maturity indicator for Completion in long and short bones, occurs in this center for girls near the menarche and for boys near their comparable pubescent stage. Its Completion thus becomes one of the convenient maturity indicators to include in studies of growth, dietary patterns, and health during adolescence.

The following summary, based on Figures 5 and 6, is an example of one way of interpreting the 42 figures constructed from onset ages and completion ages of individual children with respect to the appropriate mean age for each growth center. At the top of Figure 5, for example, the Onset range and Completion range lines for the chosen growth center have been drawn for girls according to their mean and standard deviation values in Table 1. The 34 arrows, denoting onset age plus completion age deviations, have been arrayed in an Onset sequence which begins with girl 18 who had the earliest Onset of the 34 girls. The growth center depicted here, in the distal phalanx of the second finger, is listed as the fifth of those in the seven short bones. The mean onset age was 25.3 months (Table 1), and the average Span of the osseous stage was 133 months. The correlation (Table 2) between onset age and completion age was +.50, and that between onset age and Span was --.10. With due consideration for the limits of precision in assessing, expected rate of change in ossification of girls age 2 years, and the known variations in rate of ossification of these children as described in our preceding paper in the Supplement, each arrow with a ``shaft length'' of four months or less was selected as indicating ``same schedule'' at Onset and Completion, for this particular epiphysis. Accordingly, girls 31, 29, 33, 21, 26, 13, 3, 4, 14, 32, 24, 25, 34, 23, 6, 15, 22, and 16 may be said to have the ``same schedule'' at Onset and Completion.