100 Things Batman Fans Should Know & Do Before They Die

The Human Origin of Morals

Talleyrand: A Biographical Study

The Decay of the Church of Rome

Talleyrand: A Biographical Study

A Candid History of the Jesuits

The A B C of Evolution

George Jacob Holyoake

Twelve Years in a Monastery

Is Spiritualism Based on Fraud?: The Evidence Given by Sir A.C. Doyle and Others Drastically Examined

From Rome to Rationalism, Or: Why I Left the Church

The Religion of the Twentieth Century

Spiritualism: A Popular History from 1847

1825-1925: a Century of Stupendous Progress

The Psychology of Religion: Unveiling the Cognitive and Emotional Dimensions of Religious Experience

The Encyclopedia of Essential Knowledge: P to Z, B-740

The Empresses of Constantinople

The Story of Evolution: Exploring the Origins and Impact of Evolutionary Theory

Treitschke and the Great War

The Truth about Secular Education: Its History and Results