Origins and education
Voyages and the experience of slavery
The racial background, personal encounters, and turning points in 1837
Religious reformation
Career preparations and rivals, 1845-49
Mortality, invention, and geology
Scientific racism
The types of mankind and the Kansas-Nebraska Act, 1854-55
The politics of race
Campaigning, 1856-58
Publications and crocodiles, 1859-60
More debates and new reviews
Designers and inventors
Inventions for a long war
The Trent affair : a chemistry problem
Delegation and control
The rationality of colonization
Colonization and emancipation
Societies
Mill workers and freedmen
Testing hopes and hoaxes
Spiritual forces
Meeting Agassiz
The descent of man
An end to religion
The dream of equality.