Concerning an Apparent Motion Observed in Sotne of the Fixed Stars, London, 1748, Phil. Trans., vol. xlv., pp. 8,9.

Cuvier,*Baron de. See vol. iv., p. 103.

Recherches sur les ossements fossiles de quadrupèdes, 4 vols., Paris, 1812. (The introduction to this work was translated and published as a volume bearing title of Theory of the Earth, New York, 1818.)

Delambre, Jean Baptiste Joseph. See vol. iii., p. 16.

Histoire d'astronomie, Paris, 1817-1821. This work contains not only the history of the discoveries in astronomy, but is also a complete text-book of astronomy as understood at this period.

Falconer, Hugh. See vol. iii., p. 99.

In Paloontological Memoirs, vol. ii., pp. 596-598. 252

Herschbl, William. See vol. iii., p. 20 ff.

On the Proper Motion of the Solar System, Phil. Trans., vol. 73, for 1783. (This paper was read in March, 1783.) The Constitution of the Heavens, Phil. Trans, for 1785, vol. 75, p. 213. Howard, Luke. See vol. iii., p. 182.

Philosophical Magazine, 1803. Humboldt, Alexander von. See vol. iii., p. 192.