[450] Hutton's Mathemat. Dict. vol. i. p. 572.
[451] Ibid. vol. ii. p. 46.
[452] Of which Sauveur may be considered the creator. Compare Eloge de Sauveur, in Œuvres de Fontenelle, Paris, 1766, vol. v. p. 435, with Whewell's Hist. of the Induc. Sciences, vol. ii. p. 334; Comte, Philos. Pos. vol. ii. pp. 627, 628.
[453] In the report presented to Napoleon by the French Institute, it is said of the reign of Louis XIV., ‘les sciences exactes et les sciences physiques peu cultivées en France dans un siècle qui paroissoit ne trouver de charmes que dans la littérature.’ Dacier, Rapport Historique, p. 24. Or, as Lacretelle expresses it (Dix-huitième Siècle, vol. ii. p. 10), ‘La France, après avoir fourni Descartes et Pascal, eut pendant quelque temps à envier aux nations étrangères la gloire de produire des génies créateurs dans les sciences.’
[454] A writer late in the seventeenth century says, with some simplicity, ‘the present king of France is reputed an encourager of choice and able men, in all faculties, who can attribute to his greatness.’ Aubrey's Letters, vol. ii. p. 624.
[455] The Principia of Newton appeared in 1687; and Maupertuis, in 1732, ‘was the first astronomer of France who undertook a critical defence of the theory of gravitation.’ Grant's Hist. of Physical Astronomy, pp. 31, 43. In 1738, Voltaire writes, ‘La France est jusqu'à présent le seul pays où les théories de Newton en physique, et de Boerhaave en médecine, soient combattues. Nous n'avons pas encore de bons éléments de physique; nous avons pour toute astronomie le livre de Bion, qui n'est qu'un ramas informe de quelques mémoires de l'académie.’ Correspond. in Œuvres de Voltaire, vol. xlvii. p. 340. On the tardy reception of Newton's discoveries in France, compare Eloge de Lacaille, in Œuvres de Bailly, Paris, 1790, vol. i. pp. 175, 176. All this is the more remarkable, because several of the conclusions at which Newton had arrived were divulged before they were embodied in the Principia; and it appears from Brewster's Life of Newton (vol. i. pp. 25, 26, 290), that his speculations concerning gravity began in 1666, or perhaps in the autumn of 1665.
[456] ‘L'abbé Picard fut en société avec Auzout, l'inventeur du micromètre.’ Biog. Univ. vol. xxxiv. p. 253. See also Préface de l'Hist. de l'Acad. des Sciences, in Œuvres de Fontenelle, Paris, 1766, vol. x. p. 20.
[457] The best account I have seen of the invention of the micrometer, is in Mr. Grant's recent work, History of Physical Astronomy, pp. 428, 450–453, where it is proved that Gascoigne invented it in 1639, or possibly a year or two earlier. Compare Humboldt's Cosmos, vol. iii. p. 52; who also ascribes it to Gascoigne, but erroneously dates it in 1640. Montucla (Hist. des Mathémat. vol. ii. pp. 570, 571) admits the priority of Gascoigne; but underrates his merit, being apparently unacquainted with the evidence which Mr. Grant subsequently adduced.
[458] For a short account of this able man, see Lankester's Mem. of Ray, p. 17.
[459] Notwithstanding the strong prejudice then existing against Englishmen, Butterfield was employed by ‘the king and all the princes.’ Lister's Account of Paris at the close of the Seventeenth Century, edited by Dr. Henning, p. 85. Fontenelle mentions ‘M. Hubin,’ as one of the most celebrated makers in Paris in 1687 (Eloge d'Amoltons, in Œuvres de Fontenelle, Paris, 1766, vol. v. p. 113); but has forgotten to state that he too was an Englishman. ‘Lutetiæ sedem posuerat ante aliquod tempus Anglus quidam nomine Hubinus, vir ingeniosus, atque hujusmodi machinationum peritus opifex et industrius. Hominem adii,’ &c. Huetii Commentarius de Rebus ad eum pertinentibus, p. 346. Thus, again, in regard to time-keepers, the vast superiority of the English makers, late in the reign of Louis XIV., was equally incontestable. Compare Biog. Univ. vol. xxiv. pp. 242, 243, with Brewster's Life of Newton, vol. ii. p. 262; and as to the middle of the reign of Louis XIV., see Eloge de Sebastien, in Œuvres de Fontenelle, vol. vi. pp. 332, 333.