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1 See Heer, Oswald, “Contributions to the Fossil Flora of North Greenland, being a description of the plants collected by Mr. Edward Whymper during the summer of 1867”: Phil. Trans. Roy. Soc., vol. clix, pt. ii, p. 445, 1870.Google Scholar
2 See also ProfessorNordenskiöld, 's “Expedition to Greenland”: Geol. Mag., Vol. IX, p. 419, 1872.Google Scholar