Page [267]: mediumsistic amended to mediumistic
Page [268]: phemonea amended to phenomena
Page [269]: accordian amended to accordion
Page [270]: State amended to Slate
Page [276]: ignoranty amended to ignorantly
Small inconsistencies between the Table of Contents and the section titles, such as spelling, capitalization and hyphenation have been retained. In addition to these the following discrepancies are here noted, but have been retained:
| Page | Part | Note |
| 3 | I | In the Table of Contents Super-sensible Vibrations should be followed by The Higher Vibrations. The Higher Senses of Man is The Higher Senses of Men on page [21]. In the Table of Contents Discovery of New Worlds should be followed by Transcendental Senses. |
| III | The Categories of Thought is titled The Contagion of Thought on page [56]. | |
| 4 | In the Table of Contents Repelling Adverse Influences should be followed by Neutralizing Psychic Influences. | |
| IV | Classification of Clairvoyant Phenomena is Classification According to General Distinctions on page [81]. | |
| V | In the Table of Contents Absolute Time should be followed by: The Occult Hypothesis. "The Prophecy of Cazotte." The Dinner of the Elect. The Illuminatus. The Beginning of the Prophecy. The Shadow of the Guillotine. The Fall of the Great. The Fate of Royalty. The Fulfillment of the Prophecy. Other Historical Instances. The Eternal Verities. | |
| 5 | VII | Spirit Impersonation is titled Spirit Inspiration on page [165]. Inspirational Speaking is titled Inspirational Writing on page [168]. |
| VIII | In the Table of Contents The Jacob's Ladder of Communion should be followed by The Attainment of Excellence. | |
| 6 | IX | Difficulties Among Spirits is Differences Among Spirits on page [215]. In the Table of Contents Self-Protection for Mediums should be followed by: Danger in Indiscriminate Magnetizing. Detrimental Magnetic Influence. Mediumistic Auto-Suggestion. "Psychic Sponges." Investigate Your Spirits. Spirits Are Still Human Beings. Beware of Domineering Spirits. |
| X | Impersonating Manifestations does not appear in the text. | |
| XI | In the Table of Contents Spirit Paintings should be followed by: Fraudulent Slate Writing. Practical Advice to Developing Mediums should be followed by: Need of Special Development. Advice to Discouraged Mediums. Avoid Cross-Magnetism. Avoid Psychic Absorption. The Stewardship of Great Powers. |
Section titles sometimes end with a full stop, and other times not: left as is.
Quotation marks and hyphenation have generally been standardised. Where a word occurs an equal number of times as hyphenated and unhyphenated, both forms have been retained. Where two spellings of a word have been used (for example, magnetiser/magnetizer; skeptic/sceptic) both have been retained.