Letters on Astronomy

76 chapters

1. 1LETTERS ON ASTRONOMY, IN WHICH THE ELEMENTS OF THE SCIENCE ARE
2. 2Revised Edition.
3. 3NEW YORK:
4. 4HARPER BROTHERS, PUBLISHERS,
5. 5ADVERTISEMENT
6. 6TO THE
7. 7REVISED EDITION.
8. 8CONTENTS.
9. 9LETTERS ON ASTRONOMY. LETTER I.
10. 10INTRODUCTORY OBSERVATIONS.
11. 11LETTER II.
12. 12DOCTRINE OF THE SPHERE.
13. 13LETTER III.
14. 14ASTRONOMICAL INSTRUMENTS.——TELESCOPE.
15. 15LETTER IV
16. 16TELESCOPE CONTINUED.
17. 17LETTER V.
18. 18OBSERVATORIES.

+ 58 more. The full contents open with the book.