whose fathers were shop-keepers, skilled artisans, etc., coming from
homes which were good, with no sort of privation. The result showed
marked superiority of the sons of intellectual parents. Mr. English
concludes that the children of the professional classes, between 12
and 14 years of age, exhibit very marked intelligence, and he is
convinced that the hereditary factor plays an altogether predominant
part.

In another experiment, Miss Arlitt, of Bryn Mawr College, tested 342
children from primary schools in one district, who were divided into
four groups:--

Group 1. Professional.
Group 2. Semi-professional and higher business.
Group 3. Skilled labour.
Group 4. Semi-and unskilled labour.

Marked differences between the groups were shewn. The intellectual
capacity was represented by figures as follows:--

Group 1 125
Group 2 118
Group 3 107
Group 4 92

A further research of 548 children, grouped according to the
occupation of their father, gave its results in terms of the
percentage of children in each group who scored a mark higher than the
median for the whole 548. They are as follows:--