TY  - JOUR
T1  - Contributions to Terrestrial Magnetism
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 130
SP  - 129
EP  - 155
PY  - 1840/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1840.0005
M3  - doi:10.1098/rstl.1840.0005
AU  - Sabine, E.
ER  -