TY - JOUR T1 - On the Uneliminated Instrumental Error in the Observations of Magnetic Dip. JF - Proceedings of the Royal Society of London (1854-1905) VL - 17 SP - 427 EP - 429 PY - 1868/01/01/ UR - http://dx.doi.org/10.1098/rspl.1868.0085 M3 - doi:10.1098/rspl.1868.0085 AU - Chambers, C. ER -