TY - JOUR T1 - The Structure, Evolution and Origin of the Amphibia. The "Orders' Rachitomi and Stereospondyli JF - Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character (1896-1934) VL - 209 SP - 1 EP - 73 PY - 1920/01/01/ UR - http://dx.doi.org/10.1098/rstb.1920.0001 M3 - doi:10.1098/rstb.1920.0001 AU - Watson, D. ER -