| Edition | As printed | Type | Chars | Location | vs. previous |
|---|
| 3rd ed. (1797) | ① THOUBIA | article | 228 | vol. 18, p. 504 | |
| 4th ed. (1810) | ② THOUGINIA | article | 105 | vol. 20, p. 409 | |
| 5th ed. (1815) | ③ THOUBINIA | article | 106 | vol. 20, p. 409 | |
| 6th ed. (1823) | ④ THOUNIA | article | 104 | vol. 20, p. 409 | |