TY - JOUR T1 - On the Structure and Rhythm of the Heart in Fishes, with Especial Reference to the Heart of the Eel JF - Proceedings of the Royal Society of London (1854-1905) VL - 38 SP - 108 EP - 129 PY - 1884/01/01/ UR - http://dx.doi.org/10.1098/rspl.1884.0075 M3 - doi:10.1098/rspl.1884.0075 AU - McWilliam, J. ER -