Abstract
A method for estimating the distribution of the sizes and mean size of completed fraternities of children (including both living and deceased) was presented by Dr. Barbara S. Burks in this JOURNAL, December, 1933.1 A high degree of reliability for the estimates so obtained of mean size of completed fraternities for state populations is indicated by the correlation of such estimates with ratios of children to married women (r = .894 ? .020), reported by Dr. Persis Putnam,2 using data for native whites only, 1930. The distribution of sizes of completed fraternities in three states, obtained by application of Burks 's formula, is reported by Lorimer and Osborn.3 Curiosity regarding the possible influence on these values of variations in age distribution of females, resulting from population growth and interstat6 migrations, led the present author to carry out an experiment on this subject, with the results shown in Table I. The adjustment
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