| April 12, 1957 | Control, Communication and Havingness, Part I | L. Ron Hubbard gives a lecture, 'Control, Communication and Havingness, Part I'. | |
| April 12, 1957 | Control, Communication and Havingness, Part II | L. Ron Hubbard gives a lecture, 'Control, Communication and Havingness, Part II'. | |
| April 12, 1957 | Control Processes | L. Ron Hubbard gives a lecture, 'Control Processes'. | |
| April 13, 1957 | Radiation and the Scientologist | L. Ron Hubbard gives a lecture, 'Radiation and the Scientologist'. | |
| April 13, 1957 | Radiation and Scientology | L. Ron Hubbard gives a lecture, 'Radiation and Scientology'. | |
| April 13, 1957 | Radiation in War | L. Ron Hubbard gives a lecture, 'Radiation in War'. | |
| April 13, 1957 | Group Processing: Emphasis on Control | L. Ron Hubbard gives a lecture, 'Group Processing: Emphasis on Control'. | |
| April 13, 1957 | Group Processing: Emphasis on Control (cont.) | L. Ron Hubbard gives a lecture, 'Group Processing: Emphasis on Control (cont.)'. | |
| April 14, 1957 | The Reality Scale and the Effect Scale | L. Ron Hubbard gives a lecture, 'The Reality Scale and the Effect Scale'. | |
| April 14, 1957 | Scientology and Children | L. Ron Hubbard gives a lecture, 'Scientology and Children'. | |
| April 14, 1957 | The Organization and the Field | L. Ron Hubbard gives a lecture, 'The Organization and the Field'. | |
| April 15, 1957 | The Control of Hysteria | L. Ron Hubbard gives a lecture, 'The Control of Hysteria'. | |