TY  - JOUR
T1  - Contributions to Terrestrial Magnetism. No. XIII
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 162
SP  - 353
EP  - 433
PY  - 1872/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1872.0016
M3  - doi:10.1098/rstl.1872.0016
AU  - Sabine, E.
ER  -