[41] "L'examen minutieux de petits animaux, analysés à l'aide d'instruments grossissants, fatigua, puis affaiblait, sa vue. Bientôt il fut complement aveugle. Il passa les dix derniers années de sa vie plongé dans les ténèbres, entouré des soins de ses deux tilles, à l'une desquelles il dictait le dernier volume de son _Histoire des Animaux sans Vertèbres_."--_Le Transformiste Lamarck_, _Bull. Soc. Anthropologie_, xii., 1889, p. 341. Cuvier, also, in his history of the progress of natural science for 1819, remarks: "M. de La Marck, malgré l'affoiblissement total de sa vue, poursuit avec un courage inaltérable la continuation de son grand ouvrage sur les animaux sans vertèbres" (p. 406). [42] Louis Auguste Guillaume Bosc, born in Paris, 1759; died in 1828. Author of now unimportant works, entitled: _Histoire Naturelle des Coquilles_ (1801); _Hist. Nat. des Vers_ (1802); _Hist. Nat. des Crustacés_ (1828), and papers on insects and plants. He was associated with Lamarck in the publication of the _Journal d'Histoire Naturelle_. During the Reign of Terror in 1793 he was a friend of Madame Roland, was arrested, but afterwards set free and placed first on the Directory in 1795. In 1798 he sailed for Charleston, S. C. Nominated successively vice-consul at Wilmington and consul at New York, but not obtaining his exequatur from President Adams, he went to live with the botanist Michaux in Carolina in his botanical garden, where he devoted himself to natural history until the quarrel in 1800 between the United States and France caused him to return to France. On his return he sent North American insects to his friends Fabricius and Olivier, fishes to Lacépède, birds to Daudin, reptiles to Latreille. Not giving all his time to public life, he devoted himself to natural history, horticulture, and agriculture, succeeding Thouin in the chair of horticulture, where he was most usefully employed until his death.--(Cuvier's _Éloge_.) [43] The first director of the Board or Assembly of Professors-administrative of the Museum was Daubenton, Lacépède being the secretary, Thouin the treasurer. Daubenton was succeeded by Jussieu; and Lacépède, first by Desfontaines and afterwards by Lamarck, who was elected secretary 18 fructidor, an II. (1794). [44] His attendance this year was infrequent. July 10, 1820, he was present and made a report relative to madrepores and molluscs. In the summer of 1821 he attended several of the meetings. August 7, 1821, he was present, and referred to the collection of shells of Struthiolaria. He was present May 23d and June 9th, when it was voted that he should enjoy the garden of the house he occupied and that a chamber should be added to his lodgings. He was frequent in attendance this year, especially during the summer months. He attended a few meetings at intervals in 1822, 1823, and only twice in 1824.