Biography
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History of Frederick the Second, Called Frederick the Great. 
The Life and Letters of Lafcadio Hearn, Volume 2 
The Life of Sir Isaac Newton 
Tombstone 
Selected Works of Voltairine de Cleyre 
Leibniz's New Essays Concerning the Human Understanding: A Critical Exposition 
The Memoirs of the Conquistador Bernal Diaz del Castillo, Vol 1 (of 2) / Written by Himself Containing a True and Full Account of the Discovery and Conquest of Mexico and New Spain. 
The Lives and Opinions of Eminent Philosophers 
Johann Sebastian Bach: His Life, Art, and Work 
Dostoevsky 
The life of Voltaire 
A General History of the Pirates 
The Philosophy of Friedrich Nietzsche 
Life of Lord Byron, Vol. 1 / With His Letters and Journals 
Mary Wollstonecraft 
Plutarch's Lives, Volume 1 (of 4) 
Plutarch's Lives, Volume 2 (of 4) 
Plutarch's Lives, Volume 4 (of 4) 
A Diplomat in Japan / The inner history of the critical years in the evolution of Japan when the ports were opened and the monarchy restored, recorded by a diplomatist who took an active part in the events of the time, with an account of his personal experiences during that period 
My Friends at Brook Farm 
Eminent Victorians 
Queen Victoria 
William Blake 
Recollections of Full Years 
With Lawrence in Arabia 
The Life of Cicero, Volume II. 
Personal Recollections of Joan of Arc 
Jane Austen and her works 
A Biographical Dictionary of Freethinkers of All Ages and Nations