TY - JOUR T1 - Electro-Physiological Researches. Eighth Series JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 140 SP - 287 EP - 296 PY - 1850/01/01/ UR - http://dx.doi.org/10.1098/rstl.1850.0015 M3 - doi:10.1098/rstl.1850.0015 AU - Matteucci, C. ER -