Topic · 7 of 8 editions · peak 56,147 chars
ACHROMATIC
1st2nd3rd4th5th6th7th8th
| Edition | As printed | Type | Chars | Location | vs. previous |
|---|---|---|---|---|---|
| 2nd ed. (1778–83) | ① ACHROMATIC | article | 118 | vol. 1, p. 53 | |
| 2nd ed. (1778–83) | ② ACHROMATIC TELESCOPES | article | 55 | vol. 10, p. None | |
| 2nd ed. (1778–83) | ACHROMATIC Telescopes | cross-reference | 41 | vol. 1, p. 53 | |
| 3rd ed. (1797) | ③ ACHROMATIC Telescopes | sub_entry | 205 | vol. 1, p. 69 | |
| 3rd ed. (1797) | ④ ACHROMATIC | article | 121 | vol. 1, p. 69 | |
| 4th ed. (1810) | ③ ACHROMATIC Telescopes | sub_entry | 334 | vol. 1, p. 137 | substantially revised · J 0.48 |
| 4th ed. (1810) | ④ ACHROMATIC | article | 181 | vol. 1, p. 137 | substantially revised · J 0.44 |
| 5th ed. (1815) | ③ ACHROMATIC Telescopes | sub_entry | 335 | vol. 1, p. 137 | revised · J 0.85 |
| 5th ed. (1815) | ④ ACHROMATIC | article | 182 | vol. 1, p. 137 | revised · J 0.81 |
| 6th ed. (1823) | ③ ACHROMATIC Telescopes | sub_entry | 336 | vol. 1, p. 137 | revised · J 0.77 |
| 6th ed. (1823) | ④ ACHROMATIC | article | 182 | vol. 1, p. 137 | revised · J 0.81 |
| Suppl. 4–6th (1824) | ⑤ ACHROMATIC GLASSES | article | 55,542 | vol. 1, p. 29 | |
| 7th ed. (1842) | ⑤ ACHROMATIC Telescopes | sub_entry | 55,921 | vol. 2, p. 97 | |
| 7th ed. (1842) | ⑥ ACHROMATIC | article | 120 | vol. 2, p. 97 | |
| 8th ed. (1853–60) | ⑤ ACHROMATIC | article | 56,147 | vol. 2, p. 86 | reprint · J 0.96 |