Ten Times One Series by Edward E. Hale

Published by Roberts Brothers
1. Ten Times One is Ten by Colonel Frederic Ingham (Pseudonym) (Copyright 1870)
2. Mrs. Merriam's Scholars (Copyright 1878)
3. Four and Five (Copyright 1891)

This series was introduced by Roberts Brothers with the publication of the second book in 1878.

First editions:
Boards. Various colors. 12 mo.
Volume 1: Gilt title on the cover and spine which is pebbled cloth.
Volume 2: Gilt title on the cover and the spine
Volume 3: Black line drawn illustration on the cover.