| Letter | Year |
|---|---|
| March 1949 – Vol. 30, No. 3 – On Making Ourselves Understood | March 1949 |
| February 1949 – Vol. 30, No. 2 – Our Forests Are Worth Preserving | February 1949 |
| January 1949 – Vol. 30, No. 1 – Science in Our Lives | January 1949 |
| December 1948 – Vol. 29, No. 12 – The Family And Its Problems | December 1948 |
| November 1948 – Vol. 29, No. 11 – The World’s Food | November 1948 |
| October 1948 – Vol. 29, No. 10 – Books And Reading | October 1948 |
| September 1948 – Vol. 29, No. 9 – School Children’s Health | September 1948 |
| August 1948 – Vol. 29, No. 8 – The Other Dominions | August 1948 |
| July 1948 – Vol. 29, No. 7 – The Advertising Business | July 1948 |
| June 1948 – Vol. 29, No. 7 – Canada’s Natural Resources | June 1948 |