TY - JOUR T1 - Additional Observations and Experiments on the Influence of Physical Agents in the Development of the Tadpole and the Frog JF - Proceedings of the Royal Society of London (1854-1905) VL - 11 SP - 532 EP - 537 PY - 1860/01/01/ UR - http://dx.doi.org/10.1098/rspl.1860.0117 M3 - doi:10.1098/rspl.1860.0117 AU - Higginbottom, J. ER -