TY  - JOUR
T1  - Contributions to Terrestrial Magnetism. No. VII. 
JF  - Abstracts of the Papers Communicated to the Royal Society of London (1843-1854)
VL  - 5
SP  - 622
EP  - 623
PY  - 1843/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1843.0088
M3  - doi:10.1098/rspl.1843.0088
AU  - Sabine, L.
ER  -