Philosophers

Rousseau (Vol.1&2)

The Copernicus of Antiquity (Aristarchus of Samos)

Studies in Contemporary Biography

The Landscape of a Mind

The Subversive Simone Weil

The Happy Passion

Romain Rolland: The Man and His Work

Martin Heidegger

Bacon

The life and teaching of Karl Marx

Robert Browning

Major Prophets of To-Day

Leibniz as a Politician

Leo Tolstoy: His Life and Work

Mahatma Gandhi, A Memorial Service

A Biographical Dictionary of Ancient, Medieval, and Modern Freethinkers

The life of Voltaire

Life and Writings of Thomas R. Malthus

Herbert Spencer

Historic Girlhoods, Part One