[206] This was shown by Serres (_Ann. Sci. nat._, xi., p. 54 f.n., 1827), who found in a human embryo a long cartilaginous piece extending from the ear-ossicles to the inside of the lower jaw, and suggested that it was the foundation of the permanent mandible. [207] _Abhandl._, i., p. 102, 1832; ii., p. 25, 1833. (_Blennius_ paper). [208] _Vergleichende Entwickelungsgeschichte des Kopfes der nackten Amphibien_, Koenigsberg, quarto, 276 pp., 1838. [209] Mueller's _Archiv_ for 1838. [210] _Entwickelungsgeschichte der Natter_, Koenigsberg, 1839. [211] _Bemerkungen ueber die Entwickelung des Schaedels der Wirbelthiere_, Koenigsberg, 1839. [212] _Handbuch der Physiologie des Menschen_, Koblenz, 1835; Eng. trans. by W. Baly, ii., p. 1615, 1838. [213] For a full statement of Rathke's conclusions, see the translation given by Huxley in _Lectures on the Elements of Comparative Anatomy_, London, 1864. [214] _Entwickelungsgeschichte der Wirbelthiere_, p. 142, 1861. [215] _Embryologie des Salmones_. A separate volume of L. Agassiz's _Histoire naturelle des Poissons d'Eau douce de l'Europe centrale_, Neuchatel, 1842. [216] _Untersuchungen ueber die Entwickelungsgeschichte der Gebuertshelferkroete_, Solothurn, 1842. [217] Mueller's _Archiv_ for 1843, p. ccxlviii. [218] _Untersuchtingen ueber die Entwickelung der Wirbelthiere_, Berlin, 1850-55. [219] Delivered 17th June 1858. Reprinted in _The Scientific Memoirs of T. H. Huxley_, edited by M. Foster and E. Ray Lankester, vol. i., pp. 538-606 (1898). [220] _Cf._ Reichert, _supra_, p. 149. [221] The origin of the pituitary body from the roof of the mouth was first described by Rathke (1839). [222] _Human Osteogeny explained in two Lectures_, London, 1736. [223] _De capitis ossei Esocis lucii structura singulari. Dissert. inaug._ Regiomonti, 1822. [224] "Ueber das aeussere und innere Skelet," Meckel's _Archiv_, pp. 327-76, 1826. [225] _Vergl. Entwick. d. Kopfes d. nackten Amphibien_ (p. 186). [226] _Arch. f. mikr. Anat._, xi., Suppl., 1874. [227] "Om Primordial-Craniet," _Foerhandlingar Skand. Naturf. Moele_, Stockholm, 1842. [228] Vol. I., General part, pub. 1844. [229] _Entosphenoid_, Owen. [230] _Zweiter Bericht zootom. Anstalt zu Wuerzburg_, 1849. [231] _Zeits. f. wiss. Zool._, ii., pp. 281-91. [232] Mueller's _Archiv_ for 1849, pp. 443-515. [233] _Zeits. f. wiss Zool._, ix., 1858. [234] _Entw. d. Wirbelthiere_, pp. 139-40, 1861. [235] _Lectures on the Elements of Comparative Anatomy_. [236] _On the Archetype of the Vertebrate Skeleton_, p. 5, 1848. [237] _System der thierischen Morphologie_, Leipzig, 1853. CHAPTER XI THE CELL-THEORY.