| Answer | Crossword Clue |
|---|---|
| phonautographs | PHONAUTOGRAPH, an instrument for recording sound vibrations |
| Answer | Crossword Clue |
|---|---|
| phonautographs | PHONAUTOGRAPH, an instrument for recording sound vibrations |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.