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Making the Tests

In Army Mental Tests

Read by Leon Harvey

Clarence Stone Yoakum and Robert Mearns Yerkes

Prepared in cooperation with the staff of the surgeon general's office as a source of information and printed materials concerning psycholog…


In Hereditary Genius

Read by Leon Harvey

Sir Francis Galton

A biographical summary of the pre-eminent men of Britain grouped by profession. The extensive survey draws from information including colleg…

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