| April 6, 1959 | Beingness and Communication | L. Ron Hubbard gives a lecture, 'Beingness and Communication'. | |
| April 7, 1959 | Universes | L. Ron Hubbard gives a lecture, 'Universes'. | |
| April 7, 1959 | The Dynamics | L. Ron Hubbard gives a lecture, 'The Dynamics'. | |
| April 8, 1959 | Scales | L. Ron Hubbard gives a lecture, 'Scales'. | |
| April 8, 1959 | States of Being | L. Ron Hubbard gives a lecture, 'States of Being'. | |
| April 9, 1959 | Anatomy | L. Ron Hubbard gives a lecture, 'Anatomy'. | |
| April 9, 1959 | What Can Be Done with the Mind (Reality Scale) | L. Ron Hubbard gives a lecture, 'What Can Be Done with the Mind (Reality Scale)'. | |
| April 14, 1959 | Mechanisms of the Mind | L. Ron Hubbard gives a lecture, 'Mechanisms of the Mind'. | |
| April 14, 1959 | Overt ActMotivator Sequence | L. Ron Hubbard gives a lecture, 'Overt ActMotivator Sequence'. | |
| April 15, 1959 | Codes | L. Ron Hubbard gives a lecture, 'Codes'. | |
| April 15, 1959 | The Code of a Scientologist | L. Ron Hubbard gives a lecture, 'The Code of a Scientologist'. | |
| April 16, 1959 | The Logics and Axioms of Dianetics and Scientology | L. Ron Hubbard gives a lecture, 'The Logics and Axioms of Dianetics and Scientology'. | |
| April 16, 1959 | Axioms-Second Lecture | L. Ron Hubbard gives a lecture, 'Axioms-Second Lecture'. | |
| April 21, 1959 | Types of Auditing | L. Ron Hubbard gives a lecture, 'Types of Auditing'. | |
| April 21, 1959 | Modern Auditing Types | L. Ron Hubbard gives a lecture, 'Modern Auditing Types'. | |
| April 22, 1959 | Types of Cases | L. Ron Hubbard gives a lecture, 'Types of Cases'. | |
| April 22, 1959 | Assessment | L. Ron Hubbard gives a lecture, 'Assessment'. | |
| April 23, 1959 | Present Time | L. Ron Hubbard gives a lecture, 'Present Time'. | |
| April 23, 1959 | Use of the E-Meter in Locating Engrams | L. Ron Hubbard gives a lecture, 'Use of the E-Meter in Locating Engrams'. | |
| April 28, 1959 | Theory of Processes | L. Ron Hubbard gives a lecture, 'Theory of Processes'. | |
| April 29, 1959 | Specialized Auditing | L. Ron Hubbard gives a lecture, 'Specialized Auditing'. | |
| April 29, 1959 | Processing of Children | L. Ron Hubbard gives a lecture, 'Processing of Children'. | |
| April 29, 1959 | Mistakes in Auditing Style | L. Ron Hubbard gives a lecture, 'Mistakes in Auditing Style'. | |
| April 30, 1959 | HAS Co-audit | L. Ron Hubbard gives a lecture, 'HAS Co-audit'. | |
| April 30, 1959 | Electronic Phenomena of the Mind | L. Ron Hubbard gives a lecture, 'Electronic Phenomena of the Mind'. | |
