Contents

pp v-vi

PLATES IN VOL. II

pp vi-vi

PAPERS PUBLISHED IN THE PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY AND ELSEWHERE

40 - On the Discovery of four additional Satellites of the Georgium Sidus (1798)

pp 1-21

41 - A Fourth Catalogue of the comparative Brightness of the Stars (1799)

pp 22-30

42 - On the Power of penetrating into Space by Telescopes, with a Determination of the Extent of that Power in natural Vision and in Telescopes (1800)

pp 31-52

43 - Investigation of the Powers of the prismatic Colours to heat and illuminate Objects. With an Inquiry into the Method of viewing the Sun advantageously (1800)

pp 53-69

44 - Experiments on the Refrangibility of the invisible Rays of the Sun (1800)

pp 70-76

45 - Experiments on the solar and on the terrestrial Rays that occasion Heat. Part I. (1800)

pp 77-146

46 - Observations tending to investigate the Nature of the Sun (1801)

pp 147-180

47 - Additional Observations on the variable Emission of the Light and Heat of the Sun; with Trials of transmitting the Solar Rays through Liquids (1801)

pp 181-186

48 - Observations of the two lately discovered celestial Bodies [Ceres and Pallas] (1802)

pp 187-198

49 - Catalogue of 500 new Nebulæ and Clusters; with Remarks on the Construction of the Heavens (1802)

pp 199-237

50 - Observations of the Transit of Mercury; Investigation of the Causes which often prevent the proper Action of Mirrors (1803)

pp 238-249

51 - Account of the Changes that have happened during the last Twenty-five Years, in the relative Situation of Double stars (1803)

pp 250-276

52 - Continuation of an Account of the Changes that have happened in the relative Situation of double Stars (1804)

pp 277-296

53 - Experiments for ascertaining how far Telescopes will enable us to determine very small Angles, and to distinguish real from spurious Diameters; with an Application to Observations of Mr. Harding's Star [Juno] (1805)

pp 297-316

54 - On the Direction and Velocity of the Motion of the Sun and Solar System (1805)

pp 317-331

55 - Observations on the singular Figure of the Planet Saturn (1805)

pp 332-337

56 - On the Quantity and Velocity of the Solar Motion (1806)

pp 338-359

57 - On the Figure, the Climate, and the Atmosphere of Saturn, and its Ring (1806)

pp 360-367

58 - Experiments for investigating the Cause of coloured concentric Rings (1807)

pp 368-398

59 - Observations on the celestial Body discovered by Dr. Olbers [Vesta] and on the Comet [1806 II.] (1807)

pp 399-402

60 - Observations of a Comet [1807]. To which is added, an Account of a new Irregularity in the Figure of Saturn (1808)

pp 403-413

61 - Continuation of Experiments on coloured concentric Rings (1809)

pp 414-440

62 - Supplement to the Papers on Coloured Concentric Rings (1810)

pp 441-458

63 - Astronomical Observations relating to the Construction of the Heavens (1811)

pp 459-497

64 - Observations of a Comet [1811] with Remarks on its Construction (1812)

pp 498-514

65 - Observations of a Second Comet [1811 II.] with Remarks on its Construction (1812)

pp 515-519