Abstract
IN Dr. Shufeldt's letter (NATURE, Dec. 25, 1890, p. 176) no mention whatever is made of Prof. Fürbringer's studies on the point in question, and they appear, moreover, to have been partially misunderstood by Prof. Thompson. Prof. Fürbringer published his “Untersuchungen zur Morphologie und Systematik der Vögel” (2 vols. in folio; Amsterdam) in May 1888, and I beg to reproduce some of his results as to the family Hesperornithidœ.
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HELM, F. On the Affinities of Hesperornis. Nature 43, 368 (1891). https://doi.org/10.1038/043368b0
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DOI: https://doi.org/10.1038/043368b0
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