On the ejection of blood from the eyes of horned toads O P Hay Proceedings of The United States National Museum 15:375-378 (1892) http://biostor.org/reference/78735 Page images from the Biodiversity Heritage Library, http://www.biodiversitylibrary.org/, made available under a Creative Commons Attribution-Noncommercial License http://creativecommons.org/licenses/by-nc/2.5/
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