| Edition | As printed | Type | Chars | Location | vs. previous |
|---|
| 1st ed. (1771) | ① RECTANGLE | article | 81 | vol. 3, p. 529 | |
| 2nd ed. (1778–83) | ② RECTANGLE | article | 81 | vol. 9, p. 665 | |
| 3rd ed. (1797) | ③ RECTANGLE | article | 81 | vol. 16, p. 32 | |
| 6th ed. (1823) | ④ RECTANGLE | article | 81 | vol. 17, p. 666 | |
| 7th ed. (1842) | ⑤ RECTANGLE | article | 70 | vol. 19, p. 82 | |