Abstract
THE respiratory, movements of frogs have been studied by several observers, especially Gaupp and Baglioni, of recent years. These zoologists have pointed out that the rapid up and down movement of the floor of the mouth, so typical of most batrachians, is a kind of aspiration, and does not force air in or out of the lungs to any great extent.
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HILL, M. Respiration in Frogs. Nature 69, 489 (1904). https://doi.org/10.1038/069489d0
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DOI: https://doi.org/10.1038/069489d0