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.
30. —— —— TABLE requisite to be used with the N.A. 1766, 8vo. 2s. 6d.
31. —— —— Second Edition, enlarged. 1781. 8vo. 5s.
32. —— —— Third Edition, corrected. 1802. 8vo. 5s.
33. POND’S ASTRONOMICAL OBSERVATIONS. 1811 to 1835. 4to. 21s. each.
34. RAMSDEN’S ENGINE for Dividing Mathematical Instruments. 4to. 5s.
35. —— ENGINE for Dividing Straight Lines. 4to. 5s.
36. SABINE’S PENDULUM EXPERIMENTS to Determine the Figure of the Earth. 1825. 4to. 40s.