TY - JOUR T1 - Description of a Hydropneumatic Baroscope JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 129 SP - 425 EP - 431 PY - 1839/01/01/ UR - http://dx.doi.org/10.1098/rstl.1839.0023 M3 - doi:10.1098/rstl.1839.0023 AU - Cooper, J. ER -