| Edition | As printed | Type | Chars | Location | vs. previous |
|---|
| 3rd ed. (1797) | ① OCHROMA | article | 1,324 | vol. 13, p. 179 | |
| 4th ed. (1810) | ② OCHROMA | article | 150 | vol. 15, p. 118 | |
| 5th ed. (1815) | ② OCHROMA | article | 149 | vol. 15, p. 118 | revised · J 0.77 |
| 6th ed. (1823) | ② OCHROMA | article | 149 | vol. 15, p. 118 | revised · J 0.77 |