Experiments for investigating the cause of the colored concentric rings discovered by Sir I. NEWTON between two object-glasses laid one upon another. _Phil. Trans._, 1807, pp. 180-233. _Annal. de Chimie_, LXX., 1809, pp. 154-181, 293-321; _same_, LXXI., 1809, pp. 5-40.

Observations on the nature of the new celestial body [_Vesta_] discovered by Dr. OLBERS, and of the comet which was expected to appear last January in its return from the sun. [1806, II.] _Phil. Trans._, 1807, pp. 260-266.

Sir William Herschel: His Life and Works — Part 102

Observations of a comet [1807, I.] made with a view to investigate its magnitude and the nature of its illumination, to which is added an account of a new irregularity lately perceived in the apparent figure of the planet _Saturn_. _Phil. Trans._, 1808, pp. 145-163. _Gilbert Annal._, XXXVI. (1810), pp. 389-393. _Zach, Monat. Corresp._, XX. (1809), pp. 512-514.

Sir William Herschel: His Life and Works — Part 102

Continuation of experiments for investigating the cause of colored concentric rings and other appearances of a similar nature. _Phil. Trans._, 1809, pp. 259-302.

Sir William Herschel: His Life and Works — Part 102

Supplement to the first and second part of the paper of experiments for investigating the cause of colored concentric rings between object-glasses, and other appearances of a similar nature. _Phil. Trans._, 1810, pp. 149-177. _Gilbert Annal._, XLVI., 1814, pp. 22-79.

Astronomical observations relating to the construction of the heavens, arranged for the purpose of a critical examination, the result of which appears to throw some new light upon the organization of the celestial bodies. _Phil. Trans._, 1811, pp. 269-336. _Journ. de Phys._, LXXV., 1812, pp. 121-167.

Observations of a comet, with remarks on the construction of its different parts [1811, I.]. _Phil. Trans._, 1812, pp. 115-143. _Journ. de Phys._, LXXVII., 1813, pp. 125-135. _Zach, Monat. Corresp._, XXVIII., 1813, pp. 455-469, 558-568. _Bode's Jahrbuch_, 1816, p. 185.

Observations of a second comet, with remarks on its construction [1811, II.]. _Phil. Trans._, 1812, pp. 229-237. _Nicholson Journ._, XXXV., 1813, pp. 193-199. _Bode's Jahrbuch_, 1816, p. 203.

Astronomical observations relating to the sidereal part of the heavens, and its connection with the nebulous part, arranged for the purpose of a critical examination. _Phil. Trans._, 1814. pp. 248-284. _Bode's Jahrbuch_, 1818, pp. 97-118.