^{page 516 note 1} The reader is requested to note the following errata in the part of this Address published in our last number, namely, at p. 465, line 30, for “Under” read “Unless,” and in line 31 delete the semicolon after “pectorals.”

^{page 516 note 2} “Fauna der Gaskohle und der Kalksteine der Permformation Böhmens,” vol. iii, pt. 1 (Prague, 1890), pp. 44–45.Google Scholar

^{page 517 note 1} Trans. Geol. Soc. Glasgow, vol. xi, pt. 1 (1897), pp. 41–50.Google Scholar

^{page 517 note 2} “Die Entwickelung der paarigen Flossen des Ceratodus Forsteri”; Jena, 1898.Google Scholar

^{page 517 note 3} “Ueber das Genus Hybodus und seine systematische Stellung” : Palæontographica, vol. xlvi (1900).Google Scholar

^{page 517 note 4} Five, if we include the singular and still imperfectly known Tarrasiidæ of the Lower Carboniferous.

^{page 519 note 1} “Sur la Phylogénie des Dipneustes” : Bull. Soc. belge géol. paléont. hydr.' vol. ix (1895).Google Scholar

^{page 521 note 1} “Die Zahnentwickelung des Ceratodus Forsteri” ; Jena, 1899Google Scholar

^{page 523 note 1} Traquair, R. H., “Structure and Affinities of the Platysomidæ” : Trans. Roy. Soc. Edin., vol. xxix (1879), pp. 343–391.Google Scholar