The individual examinations
Statistical analysis of the Army tests results
Analysis of the main groups of the principal sample
Analysis of the white draft into foreign and native born
Analysis of the foreign born white draft into years of residence groups
Analysis of immigration to the United States
Analysis of the Foreign born white draft by country of birth
Reliability of the results
Re-examination of previous conclusions in the light of the race hypothesis
comparison of our results with the conclusions of other writers on the subject.