| 1— | Jack Harkaway's School Days | By Bracebridge Hemyng |
| 2— | Jack Harkaway's Friends | By Bracebridge Hemyng |
| 3— | Jack Harkaway After School Days | By Bracebridge Hemyng |
| 4— | Jack Harkaway Afloat and Ashore | By Bracebridge Hemyng |
| 5— | Jack Harkaway Among the Pirates | By Bracebridge Hemyng |
| 6— | Jack Harkaway at Oxford | By Bracebridge Hemyng |
| 7— | Jack Harkaway's Struggles | By Bracebridge Hemyng |
| 8— | Jack Harkaway's Triumphs | By Bracebridge Hemyng |
| 9— | Jack Harkaway Among the Brigands | By Bracebridge Hemyng |
| 10— | Jack Harkaway's Return | By Bracebridge Hemyng |
| 11— | Jack Harkaway Around the World | By Bracebridge Hemyng |
| 12— | Jack Harkaway's Perils | By Bracebridge Hemyng |
| 13— | Jack Harkaway in China | By Bracebridge Hemyng |
| 14— | Jack Harkaway and the Red Dragon | By Bracebridge Hemyng |
| 15— | Jack Harkaway's Pluck | By Bracebridge Hemyng |
| 16— | Jack Harkaway in Australia | By Bracebridge Hemyng |
| 17— | Jack Harkaway and the Bushrangers | By Bracebridge Hemyng |
| 18— | Jack Harkaway's Duel | By Bracebridge Hemyng |
| 19— | Jack Harkaway and the Turks | By Bracebridge Hemyng |
| 20— | Jack Harkaway in New York | By Bracebridge Hemyng |
| 21— | Jack Harkaway Out West | By Bracebridge Hemyng |
| 22— | Jack Harkaway Among the Indians | By Bracebridge Hemyng |
| 23— | Jack Harkaway's Cadet Days | By Bracebridge Hemyng |
| 24— | Jack Harkaway in the Black Hills | By Bracebridge Hemyng |
| 25— | Jack Harkaway in the Toils | By Bracebridge Hemyng |
| 26— | Jack Harkaway's Secret of Wealth | By Bracebridge Hemyng |
In order that there may be no confusion, we desire to say that the books listed below will be issued during the respective months in New York City and vicinity. They may not reach the readers at a distance promptly, on account of delays in transportation.
To be published in January, 1926.
| 27— | Jack Harkaway, Missing | By Bracebridge Hemyng |
| 28— | Jack Harkaway and the Sacred Serpent | By Bracebridge Hemyng |
To be published in February, 1926.
| 29— | The Fool of the Family | By Bracebridge Hemyng |
| 30— | Mischievous Matt | By Bracebridge Hemyng |
To be published in March, 1926.
| 31— | Mischievous Matt's Pranks | By Bracebridge Hemyng |
| 32— | Bob Fairplay Adrift | By Bracebridge Hemyng |
| 33— | Bob Fairplay at Sea | By Bracebridge Hemyng |
To be published in April, 1926.
| 34— | The Boys of St. Aldates | By Bracebridge Hemyng |
| 35— | Billy Barlow | By Bracebridge Hemyng |