Note 409 — Chapter XII
Reading edition
The reader interested in this subject should consult the Memoirs by M. Valenciennes, Mem. de l’Inst.; M. Vander Hoven, in the Proceedings of the Zoological Society; Prof. Owen’s Memoir on the Pearly Nautilus, Mr. Gray’s paper in the An. Nat. Hist., Mr. Edward’s Monograph in the Palæont. Soc., and Mr. Woodward’s Manual.