TY - JOUR T1 - Observations Made with the Invariable Pendulum (No. 4. Jones), at the Royal Observatory, Cape of Good Hope, for the Purpose of Determining the Compression of the Earth JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 120 SP - 153 EP - 175 PY - 1830/01/01/ UR - http://dx.doi.org/10.1098/rstl.1830.0013 M3 - doi:10.1098/rstl.1830.0013 AU - Fallows, F. ER -