human
although none of the queries in the _questionnaire_ asked directly or indirectly about such children. The presumption was that a number of the remaining children described in the responses were also of the only-child class. But even if such were not the case, the total of forty-six was surprisingly high, since, according to reliable vital statistics, the average progeny of fertile marriages is six, with an only-child average of one out of every thirteen fertile marriages; that is, a proportion of one only child to every seventy-eight children, as contrasted with the proportion of one in fewer than every twenty-two of the
gpt
human
and
gpt
character of the peculiarities mentioned, it was found that while considerably less than half of the total number of children fell into the disadvantageous group, two-thirds of the
human
had to be put into it. Naturally this suggested the desirability of a special investigation with reference to the only child, and accordingly a second _questionnaire_ was issued, with queries relating to age, sex, nationality, health, amusements, intellectual ability, moral traits, and so forth. In this way, from school teachers and other disinterested observers, definite information was obtained concerning nearly four hundred