| Answer | Crossword Clue |
|---|---|
| pyrophones | PYROPHONE, an organ producing interference-tones by pairs of flames in tubes |
| Answer | Crossword Clue |
|---|---|
| pyrophones | PYROPHONE, an organ producing interference-tones by pairs of flames in tubes |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.