Camper: Naturalist's Library, vol. VII; Vorlesungen, by his son, with short sketch of his life, 1793; Cuvier, _loc. cit._; _Kleinere Schriften_, 2 vols. with copper plates illustrating brain and ear of fishes, etc., 1782-1785. John Hunter: The Scientific Works of, 2 vols., 1861; The _Asclepiad_, vol. VIII, 1891; the same article with illustrations in Richardson, _loc. cit._; Pettigrew, _loc. cit._ Vicq d'Azyr: Cuvier, _loc. cit._; Huxley in Life of Owen, p. 289; His works in 6 vols., 1805. Cuvier: Life by Flourens; Memoirs by Mrs. Lee, 1833; Buckle, Hist. Civ., vol. I, p. 633 et seq.; Lettres de Geo. Cuvier à C.M. Paff, 1788-1792, translated from the German, 1858. Cuvier's numerous writings--The Animal Kingdom, Leçons d'Anat. Comparée, etc.--are readily accessible. H. Milne-Edwards: Biographical sketch in _Ann. Rept. Smithson. Inst_, for 1893. Lacaze-Duthiers: Life with portraits in _Archives de Zool. Expériment._, vol. 10, 1902. Richard Owen: Life and Letters, 2 vols., 1894; Clark, Old Friends at Cambridge and Elsewhere, p. 349 et seq. J. Fr. Meckel: Carus, _loc. cit._ Gegenbaur: Erlebtes und Erstrebtes, portrait, 1901; Anat. Anz., vol. 23, 1903; _Ann. Rept. Smithson. Inst._, 1904. Cope: Osborn in _The Century_, vol. 33, 1897; Gill, Edward Drinker Cope, Naturalist, A Chapter in the History of Science, _Am. Naturalist_, 1897; Obituary notice, with portraits, _Am. Naturalist_, 1897; _Pop. Sci. Mo_., vol. 19, 1881. CHAPTER VIII Bichat: Pettigrew; Buckle, Hist. Civ., vol. I, p. 639; The Hundred Greatest Men; _Les Savants Modernes_, p. 394; _The Practitioner_, vol. 56, 1896. Koelliker: His Autobiography, Erinnerungen aus Meinem Leben, 1899, several portraits, interesting; Weldon, Life and Works in _Nature_, vol. 58, with fine portrait; Sterling, _Ann. Rept. Smithson. Inst._, 1905. Schultze: Portrait and Necrology by Schwalbe in _Archiv für Mikroscop. Anat._, vol. 10, 1874; See further under chapter XII. Virchow: _J. Hop. Univ. Circulars_, vol. XI, 1891, Celebration of Seventieth Birthday of Virchow, Addresses by Osler, Welch, and others; Jacobi, _Medical Record_, N.Y., vol. XX, 1881, good; Israel, in _Ann. Rept. Smithson. Inst._, 1902. Leydig: Brief sketch in his Horæ Zoologicæ, 1902. Ramon y Cajal: Portrait in Tenth Anniversary of Clark University, 1899. CHAPTER IX