| Letter | Year |
|---|---|
| December 1965 – VOL. 46, No. 12 – The Spirit of Research | December 1965 |
| November 1965 – VOL. 46, No. 11 – Winter Work | November 1965 |
| October 1965 – VOL. 46, No. l0 – Courtesy in Correspondence | October 1965 |
| September 1965 – VOL. 46, No. 9 – Pieces of Paper | September 1965 |
| August 1965 – VOL. 46, No. 8 – Building a Home Library | August 1965 |
| July 1965 – VOL. 46, No. 7 – Canada North of 60 Degrees | July 1965 |
| June 1965 – VOL. 46, No. 6 – Health Has Many Aspects | June 1965 |
| May 1965 – Vol. 46, No. 5 – Selling Your Goods and Services | May 1965 |
| April 1965 – Vol. 46, No. 4 – Making the Most of Your Life | April 1965 |
| March 1965 – Vol. 46, No. 3 – Canada and the Hydrologic Decade | March 1965 |