TY - JOUR T1 - Influence of Physical Agents on the Development of the Tadpole of the Triton and the Frog JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 140 SP - 431 EP - 436 PY - 1850/01/01/ UR - http://dx.doi.org/10.1098/rstl.1850.0022 M3 - doi:10.1098/rstl.1850.0022 AU - Higginbottom, J. ER -