21. LUNAR OBSERVATIONS at GREENWICH. 1783 to 1819. Compared with the Tables, 1821. 4to. 7s. 6d.
22. —— DISTANCES of the MOON’S CENTRE from the PLANETS. 1822, 3s.; 1823, 4s. 6d. 1824 to 1835. 8vo. 4s. each.
23. MASKELYNE’S ACCOUNT OF THE GOING OF HARRISON’S WATCH. 1767. 4to. 2s. 6d.
24. MAYER’S THEORIA LUNÆ JUXTA SYSTEMA NEWTONIANUM. 4to. 2s. 6d.
25. —— TABULÆ MOTUUM SOLIS ET LUNÆ. 1770. 4to. 5s.
26. —— ASTRONOMICAL OBSERVATIONS MADE AT GOTTINGEN, from 1756 to 1761. 1826. Folio. 7s. 6d.
27. NAUTICAL ALMANACS, from 1767 to 1855. 8vo. 2s. 6d. each.
28. —— —— SELECTIONS FROM THE ADDITIONS up to 1812. 8vo. 5s. 1834-54. 8vo. 5s.
29. —— —— SUPPLEMENTS, 1828 to 1833, 1837 and 1838. 8vo. 2s. each.