TY  - JOUR
T1  - Theory of the Diurnal Variation of the Magnetic Needle, Illustrated by Experiments
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 117
SP  - 308
EP  - 354
PY  - 1827/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1827.0026
M3  - doi:10.1098/rstl.1827.0026
AU  - Christie, S.
ER  -