21.
1. W. Shires, n.d.
2. R. Snow, 1832
3. W. F. Owen, 1832
4. R. Snow, 1832
5. [R. Best, 1832]
6. M. Ward, 1833
7. H. Kater, 1833
8. J. Hunter, 1833
9. J. Freeman, 1833
10. J. S. Cerquero, 1833
11. [M. J. Johnson], 1833
12. F. R. Hassler, 1833
13. W. L. Newman, 1835
14. W. S. Stratford, 1835
22.
1. M. J. Johnson, 1832
2. T. Henderson, 1833
3. G. Santini, 1833
4. F. R. Hassler, 1833
5. H. C. Schumacher, n.d.
6. W. D. Haggard, 1834
7. M. J. Johnson, 1834
8. O. F. Mossotti, 1834
9. T. Henderson, 1835
10. T. Henderson, 1835
11. W. L. Newman, 1835
12. E. Riddle, 1835
13. J. A. Lloyd, 1835
14. J. A. Lloyd, 1835
15. T. Henderson, 1835
16. J. Robertson, 1835
17. R. Snow, 1835
18. P. H. L. von Boguslawski, 1835
19. T. Henderson, 1835
20. J. S. Cerquero, 1835
21. J. Lee, 1835
22. M. V. de Conto, 1835
23. J. Utting, 1836
24. J. J. von Littrow, 1832
25. J. J. von Littrow, 1832
26. J. A. Lloyd, 1835
27. T. Grubb, 1836
28. [C. Babbage], 1836
29. F. Kaiser, 1836
30. T. Henderson, 1836
31. P. H. L. von Boguslawski, 1836
32. J. F. W. Herschel, 1836
33. T. Henderson, 1836
34. T. Henderson, 1836
35. F. G. W. Struve, 1836 (with a letter from J. South)
36. C. Hopkins, 1836
37. T. A. Southwood, 1836
38. E. Riddle, 1837
39. Mr Templeton, 1837 (with two letters from E. Riddle)
23.
1. J. Hodgson, 1827
2. T. Henderson and T. Maclear, 1828
3. W. Pearson, n.d.
24.
1. T. Selby, 1830
2. J. Dunlop, 1833
3. Observations and elements of a comet, 1835
4. Printed ephemerides of Halley’s Comet, 1835
5. F. Baily, 1837
6. Papers relating to proposed general tables of aberration and nutation. (Includes MSS of F. Baily and J. F. W. Herschel)
7. ? J. F. W. Herschel, n.d.
8. B. Gompertz, 1823 (diags only)
9. J. Walsh, 1828
10. J. Walsh, 1828
25.
1. F. Baily, 1840
2. E. Caponi, 1840
3. W. W. Boreham, 1847
4. O. W. Struve, 1849
5. A report by J. C. Adams, 1849
6. Various reports: R. Sheepshanks and R. Main
7. Anonymous clock diagrams
8. R. C. Carrington, 1855
9. S. M. Drach, 1842
10. J. R. Hind, 1850
26.
1. A. McClintock, n.d.
2. W. H. Shire, 1843
3. Notice of Galle’s Comet, 1840
4. Report by R. Sheepshanks, n.d.
5. Report by R. Sheepshanks, n.d.
6. Report by R. Main, T. Galloway and W. S. Stratford, n.d.
7. J. G. Hartley, 1845, with a report by S. M. Drach
8. Anonymous report, n.d.
9. W. Galbraith, 1844
10. J. J. Waterston, 1844
11. W. H. de Griesbach, 1845
12. W. J. Frodsham, 1845
27.
1. A. Harpur, 1856
2. A. D. Wackerbarth, 1853
3. J. Challis, 1858
4. J. Challis, 1858
5. W. Davison, 1852
28.
1. G. B. Airy, 1859 (printed notice)
2. N. R. Pogson, 1854
3. W. R. Birt, 1859
4. G. B. Airy, 1857
5. G. B. Airy, 1857
6. G. B. Airy, 1857
7. G. B. Airy, 1859
8. C. Gubbins, 1856
9. T. W. Burr, 1859
10. Anonymous eclipse drawing, 1859
11. Incomplete, n.d.
12. F. W. Burr, [1855]
13. T. Barneby, 1855
14. ‘Polaris’, 1859
15. U. J. J. Le Verrier, telegram re comet, 1857
16. Anonymous, n.d.
17. J. von Lamont, 1860
18. Anonymous, n.d.
19. C. Rümker, 1854
20. U. J. J. Le Verrier, n.d. (abstract of letter)
21. G. B. Airy, 1857
29.
1. A. Secchi, 1861
2. A. Secchi, 1867
3. S. J. Jones, 1868
4. [J. Baxendell], 1869
5. [E. J. Stone, 1864]
6. E. B. Powell, 1862
7. L. P. Casella (advertisement)
8. J. Voyle, 1869
9. O. Pihl, 1869
10. E. J. Stone, [1869]
11. G. B. Airy, 1869
12. G. B. Airy, 1869
13. R. A. Proctor, 1869
14. R. A. Proctor, 1869
15. R. A. Proctor, 1869
16. C. H. Weston, 1869
17. E. W. Brayley, [1869]
18. R. A. Proctor, [1869]
19. R. A. Proctor, [1869]
20. C. G. Perrins, n.d.
21. Committee report, n.d.
22. A. Graham (advertisement)
23. W. R. Dawes, 1863
24. W. R. Dawes (advertisement)
25. R. Main, 1863
26. J. R. Hind, 1863
27. T. Oppolzer, 1864
28. C. W. Moesta, [1865]
29. G. B. Airy, 1863
30. W. R. Birt, 1863
31. J. Macdonald, 1863
32. [E. Heis, 1864]
33. O. W. Struve, [1863], written by G. B. Airy
34. W. De La Rue, B. Stewart, B. Loewy, 1867
35. G. B. Airy, [1863]
36. J. Chodzko, n.d.
37. [J. Chodzko], n.d.
38. Council’s report on progress of astronomy, [1864]
39. E. Dunkin, [1864]
40. J. Glaisher, [1863]
41. H. C. Key, 1863
42. G. B. Airy, n.d.
43. M. G. de Pontecoulant, [1863]
44. M. G. de Pontecoulant, [1864]
45. F. A. T. Winnecke, 1863
46. J. McCarthy, 1863
47. ‘Polaris’, 1863
48. G. B. Airy, [1842]
49. Incomplete, n.d.
50. F. Taunton, n.d.
51. G. B. Airy, 1863
52. R. S. Browne, 1863
53. P. A. Hansen, 1863
54. W. R. Dawes, 1863
55. G. B. Airy, 1863 (corrections only)
56. M. F. l. Karlinski, 1863
57. C. Blackwell (advertisement)
58. ? J. Stebbing (advertisement)
59. D. Rennoldson, 1868
60. ? T. Addison, 1868
30.
1. A. N. Sawitsch, 1871
2. G. Chant, n.d.
3. W. R. Dawes, 1850
4. W. Lassell (advertisement)
5. S. M. Drach, 1864