TY  - JOUR
T1  - On Improvements in the Instruments and Methods Employed in Determining the Direction and Intensity of the Terrestrial Magnetic Force
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 123
SP  - 343
EP  - 358
PY  - 1833/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1833.0020
M3  - doi:10.1098/rstl.1833.0020
AU  - Christie, S.
ER  -