^{page 550 note 1} Some Neglected Factors in Evolution, an Essay in Constructive Biology, by Bernard, Henry M., M.A. Cantab., F.Z.S., ed. by Bernard, Matilda. 8vo; pp. xxii + 490, text-illustrations. G. P. Putnam's Sons, New York and London, 1911.Google Scholar

^{page 551 note 1} Bernard's explanation of the nuclear wall as a felted tangle of linin threads is not very convincing, for the tangling would, presumably, be greatest at the nucleus and gradually less towards the periphery of the cell.

^{page 551 note 2} The reader must refer to the work itself to gain a proper idea of the number of otherwise inexplicable phenomena in morphology that can be readily construed in terms of the protomitomic theory.

^{page 554 note 1} In embracing Mollusca among simple cell aggregates and apart from annelids, surely Bernard fails to account for such forms as show traces of segmentation and other suggestions of alliance with annelid worms, such as the troehosphere larva; see Pelseneer, , “La Classification générale des Mollusques”: Bulletin Scientifique de la France et de la Belgique, vol. xxiv (1892), pp. 368–71, 1893Google Scholar, and “Recherches morphologiques et phylogénétiques sur les Mollusques archaïques”: Mémoires Couronnés l'Acad. roy. belgique, vol. Ivii, pp. 83–8, 1899.Google Scholar

^{page 554 note 2} The position assigned by Bernard to Sagitta is interesting. It is an aggregate of gastræal units arranged on a different plan from the typical annelid grouping and near that of the hypothetical vertebrate ancestor, but, being of insufficient efficiency, it has failed in its turn to become a new unit.

^{page 555 note 1} Koch, Von, “Ueber die Entwicklung des Kalkskeletes von Asteroides calycularis, und dessen morphologischer Bedeutung”: Mittheilungen aus der zoologischen Station zu Neapel, vol. iii, pp. 284–92, 1882Google Scholar; and Bourne, , “Studies on the Structure and Formation of the Calcareous Skeleton of the Anthozoa”: Quart. Joum. Micro. Sci., N.S., vol. xli, pp. 499–547, 1899.Google Scholar

^{page 555 note 2} Heider, Von, “Die Gattung Cladocera, Ehrenberg”: Sitzungsberichter der Kaiserlichen Akademie der Wissenschaften, Wien, vol. lxxxiv, pt. i, pp. 634–68, 1882Google Scholar; and Ogilvie, , “Microscopic and Systematic Study of Madreporarian Types of Corals”: Phil. Trans. Roy. Soc. Lond., ser. B, vol. clxxxvii, pp. 83–345, 1897.Google Scholar

^{page 555 note 3} Op. cit., under (2).

^{page 555 note 4} “Chalicoblast,” von Heider, op. cit., under (2), p. 651, not “calicoblast”, after Bourne and Ogilvie (χλξ, ‘a stone’).

^{page 555 note 5} Bourne, “Anthozoa,” p. 80, in Lankester, A Treatise cm Zoology, 1900, pt. ii.Google Scholar

^{page 556 note 1} Hyatt, , “Bioplastology and the related branches of Biologic Research”: Proc. Boston Soc. Nat. Hist., vol. xxvi, p. 77, 1893.Google Scholar

^{page 556 note 2} Wilson, , “On the Development of Manicina areolata”: Journ. Morph., vol. ii, pp. 191–248, 1889.Google Scholar

^{page 557 note 1} Carruthers, , “The Primary Septal Plan of the Rugosa”: Ann. Mag. Nat. Hist., ser. VII, vol. xviii, pp. 356–63, 1906.Google Scholar

^{page 557 note 2} For example of these points see Duerden, “The Morphology of the Madreporaria.—VI. The Fossula in Rugose Corals” Biol. Bull., vol. ix, pp. 34–7, figs. 7–110, 1905.Google Scholar

^{page 557 note 3} e.g. in Astroides. Lacaze-Duthiers states: “C'est lorsque le nombre 12 des divisions du polype est atteint … que se produisent les dépôts calcaires à peu près en même temps et de même dans toute la zone” (“Développement des Coraillaires, Deuxième Mémoire”: Archives de Zoologie expérimentale et générale, vol. ii, p. 328, 1873).Google Scholar