| Series |
Early American imprints. First series ; no. 49582. ^A478749
|
| General note | A puzzle book of moral maxims printed on facing pages printed in black and red. "Anyone ... may easily point out, and truly find which of these lines you did commit to mind; provided you declare on which red side that individual line may be descried." |
| General note | A similar work, published under title "The impenetrable secret," is attributed to Horace Walpole in the British Museum Catalogue. |
| General note | The American Antiquarian Society copy bears an owner's inscription dated 1799. The only Joseph Gales of 18th-century typographic record (1761-1841) printed at Philadelphia between 1795 and 1799. |
| General note | Not in Evans or Bristol. |
| Reproduction note | Electronic text and image data. [Chester, Vt. : Readex, a division of Newsbank, Inc., 2002-2004. Includes files in TIFF, GIF and PDF formats with inclusion of keyword searchable text. (Early American imprints. First series ; no. 49582). |
| Genre/form | Puzzles. |
| Other title | Impenetrable secret. |
