ERRATA.
Reading edition
Page 20. line 8. for he read the.
—— 22. — 6. ⎫
⎪
—— 23. — 2. ⎪ — disk — disc.
⎬
—— 42. — last ⎪
⎪
—— 79. — 5. ⎭
—— 74. — 6. — it axis — its axis.
—— 78. — 19. dele Mercury.
iii
Reading edition
Page 20. line 8. for he read the.
—— 22. — 6. ⎫
⎪
—— 23. — 2. ⎪ — disk — disc.
⎬
—— 42. — last ⎪
⎪
—— 79. — 5. ⎭
—— 74. — 6. — it axis — its axis.
—— 78. — 19. dele Mercury.
iii