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Published online by Cambridge University Press: 01 May 2009
page 477 note 1 Since writing the above I hare been able to study, very carefully, the leading types of Palæozoic Ptilodictya. In a future paper on the Family Ptilodictidæ I shall be able to correct many inaccuracies of our ordinary nomenclature.Google Scholar
page 477 note 2 Mus. Pract. Geol. iv. in Catalogue of Camb. and Sil. Fossils.Google Scholar
page 478 note 1 Neues Jahrb. für. Min., etc., 1881, Bd. II. p. 102.Google Scholar