| Contents | Year |
| Literature Vol. 1 | 1950 |
| Literature Vol. 2 | 1950 |
| Biography Vol. 3 Book 1 | 1950 |
| Biography Vol. 3 Book 2 | 1950 |
| Biography Vol. 4 | 1950 |
| Commerce and Industry Vol. 5 Book 1 | 1950 |
| Education Vol. 5 Book 1 Part 1 | 1935 |
| Government and politics Vol. 6 Book 1 | 1935 |
| Commerce and Industry Vol. 6 Book 2 | 1950 |
| Art Vol. 7 Part 1 | 1953 |
| Science Vol. 7 Part 1 | 1936 |
| Art Vol. 8 Part 1 | 1957 |
| History Vol. 8 Part 1 | 1936 |
| Education Vol. 9 Part 1 | 1950 |
| Religion Vol. 10 Book 1 | 1950 |
| Governemnt and Politics Vol. 11 Book 1 | 1953 |
| Government and Politics Vol. 12 Book 2 | 1953 |
| Science Vol. 13 Book 1 | 1957 |
| Science Vol. 14 Book 2 | 1957 |
| History Vol. 15 Book 1 | 1957 |
| History Vol. 16 Book 2 | 1957 |
| Builders Vol. 17 Book 1 | 1958 |
| Builders Vol. 18 Book 2 | 1958 |
| General Information Vol. 19 Book 1 | 1958 |
| General Information Simplified Index Vol. 20 Book 2 | 1958 |