- Observations of a Bahai Traveller 1908
- The Bahai Movement: A Series of Nineteen Papers Upon the Bahai Movement (1912)
- Illustrated Description of a Design in the Persian-Indian Style of Architecture for the First Mashrak-el-Azkar (Bahai Temple) to be Erected in America
- The Peace of the World; A Brief Treatise Upon the Spiritual Teaching of the Bahai Religion with Particular Regard to Its Application to the Great Problem, Now Before the Nations, of the Establishment
- Constructive Principles of the Bahai Movement: A Summary of the History, Object and Institutions of the Bahai Religious Teachings














